Runes
  • 9
    Greater Mark of Magic Penetration (+0.87 magic penetration)
  • 9
    Greater Seal of Scaling Mana Regeneration (+0.065 mana regen / 5 sec. per level (+1.17 at champion level 18))
  • 9
    Greater Glyph of Scaling Ability Power (+0.17 ability power per level (+3.06 at champion level 18))
  • 3
    Greater Quintessence of Movement Speed (+1.5% movement speed)
Skill Order
Q W E R
1 1 1 1
2 2 2 2
3 3 3 3
4 4 4 4
5 5 5 5
6 6 6 6
7 7 7 7
8 8 8 8
9 9 9 9
10 10 10 10
11 11 11 11
12 12 12 12
13 13 13 13
14 14 14 14
15 15 15 15
16 16 16 16
17 17 17 17
18 18 18 18

[center][imgext=http://localhostr.com/file/OyzD8Ln/karthuspicture.png][/center] Before we start, Karthus is one of the most powerful AP carries in the game. He is considerably weak early on in the game, but very devastating during the late game phase. His skillset, however, lets him play very passive and farm easily while keeping a safe distance against most champions. His main goal is to farm, farm, farm, farm until you become a powerhouse and dominate players throughout late game. He also has one of the best ultimates, which does global damage to all enemies on the map. It can instantly kill enemies with low HP or assist teammates in a fight anywhere on the map. His passive is also incredibly strong, because after he dies he is invulnerable for 7 seconds in a stationary position where he can still cast spells and still deal damage to enemies. Hello! My name is Jintae and welcome to my very first LoL guide. I've been playing Karthus as my main since Season 1 started and hes always been my most played champion. I currently have over 170+ ranked games with Karthus and I'm one of the few top ranked players who main him. I hold a 62%+ win ratio with him in Season 2 with about 142 games total as of now. I currently stand at about 2.2k+ elo. [title]Pros:[/title] [.]Insane damage late game [.]Global ultimate that damages enemies [.]Very easy to farm and clear minion waves ([imgsmall=skills/karthus/q.png] 850 range) [.]Very fast at clearing Dragon and Baron [.]Has powerful wall that can zone, counter-initiate enemies, or scout bushes [.]Can fight for 7 seconds even after dying [title]Cons:[/title] [.]Weak early game [.]Hard to comeback after losing lane [.]No escape abilities [.]Terrible auto-attack animation [.]Needs farm to be effective [center][imgext=http://localhostr.com/file/SDlv0yx/karthusstats.png][/center] [center][imgext=http://localhostr.com/file/hFzXT8m/jintaeprofile.png][/center]

[highlight]3/20/12[/highlight] - Added Changelog. Edited "Hard Matchups" list. Added Maokai's [imgsmall=skills/maokai/w.png] to the list of spells that nullify Requiem. Updated a few lane matchup explanations.

Karthus is very flexible on choosing what runes to use. Here I will list all the viable runes that I feel are effective. [title][highlight]Marks:[/highlight][/title] [.][number]9x Magic Penetration[/number] - This is the only rune I feel that is useful for AP champs. [title][highlight]Seals:[/highlight][/title] [.][number]9x Mana Regen per level[/number] - Works well for pressuring enemies with [imgsmall=skills/karthus/q.png] if they try to harass you or you can make them fear your range and damage if you can manage to land hits. This will also help keep your mana up throughout the game because [imgsmall=skills/karthus/e.png] soaks up a ridiculous amount of mana. [.][number]9x Ability Power per level[/number] - Lets you have bonus AP late game and scales better for late game. Makes you do more damage and hit harder. [.][number]9x Armor[/number] - The only time I would ever choose to use these runes is if I'm versus Talon or Pantheon middle. [.][number]9x HP per level runes[/number] - Gives you a boost of HP for better survivability. [title][highlight]Glyphs:[/highlight][/title] [.][number]9x Ability Power per level[/number] - Again, gives bonus AP late game and scales better for late game. [.][number]9x Magic Resist[/number] - Great runes to use versus spammy AP champs like Cassiopeia and Veigar. [title][highlight]Quintessences:[/highlight][/title] [.][number]3x Flat Ability Power[/number] - Gives a big increase of AP +15 from the very start of the game. Scales well throughout the game. [.][number]3x Movement Speed[/number] - Having bonus movement speed allows you to catch people with a wall easier, land [imgsmall=skills/karthus/q.png]'s easier, possibly run away from ganks, and constantly tailing people with [imgsmall=skills/karthus/e.png]. [.][number]3x Armor[/number] - Same as what I mentioned about armor seals. I would only use these runes versus Talon or Pantheon middle.

[title][img=skills/karthus/p.png] Passive: Death Defied[/title] [number]Upon dying, Karthus enters a spirit form allowing him to continue casting spells while dead for 7 seconds. [/number] [title]Explanation:[/title] This passive makes Karthus extremely dangerous even while dead. You can even use your ultimate while dead and have enough time to land two or three [imgsmall=skills/karthus/q.png] and a [imgsmall=skills/karthus/w.png]. [title][img=skills/karthus/q.png] Q: Lay Waste[/title] [number]Creates a delayed blast at Karthus' cursor position. After 0.5 seconds, deals 40 / 60 / 80 / 100 / 120 (+30% of ability power) magic damage to each nearby enemy, this deals double damage if it hits only a single unit. Cooldown 1seconds Cost 20 / 28 / 36 / 44 / 52mana Range 875[/number] [title]Explanation:[/title] A strong, skillshot ability that is easily dodged. It can be difficult to hit champions with high movement speed paired with a player who knows how to juke. Only from practice, it becomes much easier to hit targets with this skill. This skill combined with the long range also makes it very easy to farm and harass enemies with. This ability casted in a bush will also give vision inside the bush. It can be very useful for scouting bushes instead of facechecking them when you don't have a ward. [title][img=skills/karthus/w.png] W: Wall of Pain[/title] [number]Creates a 800 / 900 / 1000 / 1100 / 1200 distance wide wall through target point. Reduces enemy armor and magic resistance by 15 / 20 / 25 / 30 / 35 and reduces movement speed by up to 40 / 50 / 60 / 70 / 80%; debuff lasts 5 seconds. The wall lasts 5 seconds. Cooldown 22 seconds Cost 100 mana Range 1000 [/number] [title]Explanation:[/title] This skill provides many many uses, which makes it one of the strongest abilities in the game. You can place it ontop of enemies and shred their magic resistance and armor. Placing a wall infront of enemies while you're chasing them will cut them off or force them to go through it to proc the slow debuff. The wall can be used to counter-initiate some fights if you time it correctly. You can also scout bushes or give vision over ledges if you place it down. Note: You can use this ability on Blue Golem to kill it faster. It will shred away all of its MR. Also, This skill will not work on Baron or Dragon. [title][img=skills/karthus/e.png] E: Defile[/title] [number]Toggle Off: When Karthus kills a unit, he restores 20 / 27 / 34 / 41 / 48 mana. Toggle On: Drains 30 / 42 / 54 / 66 / 78 Mana to deal 30 / 50 / 70 / 90 / 110 (+25% of ability power) damage to nearby enemies each second. Cooldown 0.5seconds Range 550[/number] [title]Explanation:[/title] Be wise when you choose to use this ability early in the game. It soaks up a lot of mana, but also deals a huge amount of AoE damage around you. It is also great for clearing out waves of minions when you have to. [title][img=skills/karthus/r.png] R: Requiem[/title] [number]After channeling for 3 seconds, Karthus deals 250 / 400 / 550 (+60% of ability power) magic damage to all enemy champions (regardless of distance). Cooldown 180 / 150 / 120 seconds Cost 200 / 300 / 400 mana Range 10000 [/number] [title]Explanation:[/title] One of the best ultimates in the game. It can be used to clean up enemies with low HP or assist teammates in a fight. It can easily turn team fights around. It can also award you assists. [highlight]WARNING:[/highlight] This ultimate has a channel duration so it can be interrupted with a silence or stun. Make sure to be in a good position before using the ultimate while you're alive. If you're dead and on your passive duration then its impossible for the enemy to interrupt this ultimate. There are also certain champions that can avoid the ultimate by just using one of their abilities.

[title]Skills that completely nullify Requiem:[/title] [.][imgsmall=champ/sivir.png] [number]Spellshield[/number] [imgsmall=skills/sivir/e.png] [.][imgsmall=champ/fizz.png] [number]Playful/Trickster[/number] [imgsmall=skills/fizz/e.png] [.][imgsmall=champ/poppy.png] [number]Diplomatic Immunity[/number] [imgsmall=skills/poppy/r.png] [.][imgsmall=champ/shaco.png] [number]Hallucinate[/number] [imgsmall=skills/shaco/r.png] [.][imgsmall=champ/anivia.png] [number]Rebirth[/number] [imgsmall=skills/anivia/p.png] [.][imgsmall=champ/kayle.png] [number]Intervention[/number] [imgsmall=skills/kayle/r.png] [.][imgsmall=champ/pantheon.png] [number]Grand Skyfall[/number] [imgsmall=skills/pantheon/r.png] [.][imgsmall=champ/tryndamere.png] [number]Undying Rage[/number] [imgsmall=skills/tryndamere/r.png] [.][imgsmall=champ/vladimir.png] [number]Sanguine Pool[/number] [imgsmall=skills/vladimir/w.png] [.][imgsmall=champ/nocturne.png] [number]Shroud of Darkness[/number] [imgsmall=skills/nocturne/w.png] [.][imgsmall=champ/masteryi.png] [number]Alpha Strike[/number] [imgsmall=skills/masteryi/q.png] [.][imgsmall=champ/fiora.png] [number]Blade Waltz[/number] [imgsmall=skills/fiora/r.png] [.][imgsmall=champ/maokai.png] [number]Twisted Advance[/number] [imgsmall=skills/maokai/w.png] [title]Skills/Passives that can be used to possibly survive Requiem:[/title] [.][imgsmall=champ/blitzcrank.png] [number]Mana Barrier[/number] [imgsmall=skills/blitzcrank/p.png] [.][imgsmall=champ/masteryi.png] [number]Meditate[/number] [imgsmall=skills/masteryi/w.png] [.][imgsmall=champ/soraka.png] [number]Astral Blessing & Wish[/number] [imgsmall=skills/soraka/w.png][imgsmall=skills/soraka/r.png] [.][imgsmall=champ/nunu.png] [number]Consume[/number] [imgsmall=skills/nunu/q.png] [.][imgsmall=champ/taric.png] [number]Imbue[/number] [imgsmall=skills/taric/w.png] [.][imgsmall=champ/orianna.png][imgsmall=champ/janna.png][imgsmall=champ/lux.png][imgsmall=champ/karma.png] [number]Shields[/number] [imgsmall=skills/orianna/e.png][imgsmall=skills/janna/e.png][imgsmall=skills/lux/w.png][imgsmall=skills/karma/e.png] [.][imgsmall=champ/gangplank.png] [number]Remove Scurvy[/number] [imgsmall=skills/gangplank/w.png] [.][imgsmall=champ/udyr.png] [number]Turtle Stance[/number] [imgsmall=skills/udyr/w.png] [.][imgsmall=champ/sion.png] [number]Death's Caress[/number] [imgsmall=skills/sion/w.png] [.][imgsmall=champ/nasus.png] [number]Fury of the Sands[/number] [imgsmall=skills/nasus/r.png] [.][imgsmall=champ/renekton.png] [number]Dominus[/number] [imgsmall=skills/renekton/r.png] [.][imgsmall=champ/malphite.png] [number]Granite Shield[/number] [imgsmall=skills/malphite/p.png] [.][imgsmall=champ/shen.png] [number]Stand United[/number] [imgsmall=skills/shen/r.png] [.][imgsmall=champ/rumble.png] [number]Scrap Shield[/number] [imgsmall=skills/rumble/w.png] [.][imgsmall=champ/urgot.png] [number]Terror Capacitor[/number] [imgsmall=skills/urgot/w.png] [.][imgsmall=champ/morgana.png] [number]Black Shield[/number] [imgsmall=skills/morgana/e.png] [.][imgsmall=champ/galio.png] [number]Bulwark[/number] [imgsmall=skills/galio/w.png] [.][imgsmall=champ/riven.png] [number]Valor[/number] [imgsmall=skills/riven/e.png] [.][imgsmall=champ/garen.png] [number]Courage[/number] [imgsmall=skills/garen/w.png] [.][imgsmall=champ/alistar.png] [number]Triumphant Roar & Unbreakable Will[/number] [imgsmall=skills/alistar/e.png][imgsmall=skills/alistar/r.png] [.][imgsmall=champ/poppy.png] [number]Valiant Fighter[/number] [imgsmall=skills/poppy/p.png] [.][imgsmall=champ/maokai.png] [number]Sap Magic & Vengeful Malestrom[/number] [imgsmall=skills/maokai/p.png][imgsmall=skills/maokai/r.png] [title]Items:[/title] [.][imgsmall=items/banshees-veil.png] Spellshield. [.][imgsmall=items/zhonyas-hourglass.png] Item grants immunity when active. [.][imgsmall=items/hexdrinker.png] A shield that absorbs magic damage. [title]Summoner Spells:[/title] [.][imgsmall=summoners/heal.png] Heals champion that uses it and also champions around him/her.

[center][img=skills/karthus/r.png][highlight]>[/highlight][img=skills/karthus/q.png][highlight]>[/highlight][img=skills/karthus/e.png][highlight]>[/highlight][img=skills/karthus/w.png] The skill order for Karthus is pretty straightforward. You want to level up your ultimate whenever you can. Max out [imgsmall=skills/karthus/q.png] first. Get [imgsmall=skills/karthus/w.png] at level 4. Max out [imgsmall=skills/karthus/e.png] second. Finish maxing out [imgsmall=skills/karthus/w.png] last.[/center]

[center][highlight]Starting Items:[/highlight] [item=boots-of-speed][item=health-potion3] This is the general starting items for AP carries mid.[/center] [center][highlight]CORE:[/highlight] [item=sorcerers-shoes]or[img=items/mercurys-treads.png][item=rod-of-ages][/center] [center][img=items/mercurys-treads.png] The only time I use this is when I'm against Veigar to avoid his stun + Meteor combo.[/center] [center][highlight]Final Items:[/highlight] [item=sorcerers-shoes][item=rod-of-ages][item=will-of-the-ancients][item=rabadons-deathcap][item=void-staff][item=zhonyas-hourglass][/center] [center]You can choose what order to build your final items depending on what you feel like you need. If you want more damage then build [imgsmall=items/rabadons-deathcap.png] first. If you want lots of sustain then get [imgsmall=items/will-of-the-ancients.png]. Build a [imgsmall=items/void-staff.png] afterwards.[/center] [center][item=negatron-cloak] Never be afraid to purchase this item. It is a great item to purchase if you're against double AP team compositions like Vladimir top and another AP carry mid. Or a very bursty champ like Leblanc. You can choose to turn this item into [imgsmall=items/abyssal-scepter.png] or [imgsmall=items/banshees-veil.png] or you can sell it and replace it with [imgsmall=items/void-staff].[/center] [center][item=health-potion] Buy an extra one or two of these on first recall if the extra sustain will help you stay in lane longer if the enemy is harassing you too heavily.[/center] [center][img=items/elixir-of-brilliance.png] Good situational item if you have nothing else to buy or for a teamfight that determines the winner of the game (Ex. team fight for Baron)[/center] [center][item=sight-ward][highlight]REMEMBER TO ALWAYS BUY WARDS![/highlight][item=sight-ward] Buying one or two or these can save you from a gank middle. Getting ganked is one the things you DO NOT want to happen. Losing lane early as Karthus will make it very hard for you to comeback into the game. You want to make sure to survive and not die during lane phase so you can keep farming and preparing yourself for late game. Wards can also provide good coverage for your jungler. You'll possibly be able to see if the enemy jungler comes in to your jungle. This can lead to an potential kill if you and your jungler is prepared.[/center]

Against most champions you should be fine if you passively farm early and play it safe. Remember that your weakest point is early game. Your [imgsmall=skills/karthus/q.png] has 850 max range and will easily allow you to farm creeps then back away quickly. [title]Matchups:[/title] [imgsmall=champ/ryze.png] This mid-range caster will just keep trying to harass you constantly. His spells have short range so try your best to avoid getting hit by them and farm minions whenever they get low enough then keep your distance again. You can always try landing [imgsmall=skills/karthus/q.png] while kiting him if he tries to run up to you and harass you. It may make him back off and give you more space/less pressure. [imgsmall=champ/annie.png] An annoying match up similar to Ryze. Keep your distance and try your best avoid getting stunned by her. If you click on her and you can see her passive stacks on her stun proc. If it says "Energized" then avoid getting hit by her at all costs or else it will lead into a bursty stun combo. When she hits level 6 always watch out for a Flash + ultimate combo and the possibility of her jungler coming out to gank you. It will easily do enough damage to burst you down and kill you. [imgsmall=champ/viktor.png] Mid-range caster like Ryze again except for his Death Ray ability, but its a skillshot that can easily be dodged since it travels slowly. Keep a far range away from him and kite him while spamming [imgsmall=skills/karthus/q.png] if he tries to get close and harass you. [imgsmall=champ/vladimir.png] Another mid-range caster like Ryze and Viktor, but with a lot of sustain in lane and no CC. Just sit back and farm away. Try landing some [imgsmall=skills/karthus/q.png] when he gets too close to try making him back off and give you space. Remember that he can avoid your ultimate by using his pool. [imgsmall=champ/anivia.png] She has a skillshot stun that slowly travels to target location, try avoiding it as much as possible. She also has a wall that can block your path and force you to run around it. Level pre-6 she'll be fairly easy to deal with, but be careful when she hits level 6. If you get close enough she'll easily be able to hit you with a burst combo from her AoE ulti + Frostbite. Always keep your distance and you should be able to farm safely. Remember its always better to miss a few creeps instead of dying for them too. [imgsmall=champ/brand.png] Try your best to avoid his AoE spell Pillar of Flame, he will most likely spam it constantly during lane phase. Don't stand near minions when they're ablazed or else he'll try to hit you with Conflagration. Also avoid his fireball skillshot if you're ablazed or else it will stun you and lead in to a deadly combo. Stay away from teammates/minions if he uses his ultimate on you because it will bounce between targets and can hit you multiple times. [imgsmall=champ/cassiopeia.png] Do your best to avoid her skillshot as MUCH as possible. It is very similar to Karthus' [imgsmall=skills/karthus/q.png] ability. Getting hit will allow her to constantly land Twin Fangs and give her bonus movement speed to chase you down and harass you even more. Also try your best not to face her direction when she has her ultimate up. If you're facing her direction and she ultimates you, you'll be stunned for about 2 seconds which will likely kill you. [imgsmall=champ/fizz.png] Very annoying champion to deal with. He can dash at you then juke most of your spells by going invulnerable jumping out to a safe distance. Be careful how low you get or else he'll try to dash onto you and combo you with his ultimate. Just stay a safe distance and don't try to fight him 1vs1 unless you know for sure you can kill him with Exhaust. [imgsmall=champ/galio.png] Hard to kill this guy because of his Bulwark and high amounts of magic resistance. Just passive farm and do your best to dodge his skillshots. You can land some free hits if he goes in to melee some minions. Be careful for his Flash + ultimate combo. [imgsmall=champ/gragas.png] Dodge his barrels. You can harass him a bit if he goes in to farm minions by meleeing. Try to position yourself so that its hard to get blown away towards him if he uses his ultimate. [imgsmall=champ/kassadin.png] Easy to deal with pre-6. You can harass him if he goes in to melee minions for cs. His passive gives a lot of bonus magic resistance though, so it probably won't do a lot of damage. Once he gets his ultimate at level 6 you have to worry about his teleport + silence + slow combo, which hurts a lot and is very annoying. If you use your ultimate, make sure you position yourself well so that he can't teleport and silence you to cancel your ultimate. [imgsmall=champ/heimerdinger.png] You can easily take out his turrets with your [imgsmall=skills/karthus/q.png] if you wanted to. Stay behind at least 3 minions or else you'll get hit by his rockets. Avoid his grenade, you should not be hit by it because it travels VERY slow. [imgsmall=champ/katarina.png] You can harass her with [imgsmall=skills/karthus/q.png] if she tries to melee minions. Careful for her blink and daggers that jump onto multiple targets. Make sure to USE EXHAUST immediately when she ultimates you. [imgsmall=champ/kennen.png] Stay behind minions to avoid his skillshot. Try not to get hit by his passive proc which allows him to use a skill on you if you're marked. If you stay away long enough it will force him to waste the passive to keep farming minions. USE EXHAUST if he uses ultimate. [imgsmall=champ/ahri.png] Exhaust is key versus this champion. Dodge all her skillshots and know the ranges of them. Stay behind minions to avoid being able to be taunted. Keep some distance so Foxfire can't hit you. If Ahri ever engages with her ultimate, exhaust her and she'll have to back off right away or she'll lose a 1v1 fight most likely. [imgsmall=champ/leblanc.png] The most annoying caster in the game. Try to avoid being harassed early. If she keeps trying to run towards you and harass you, try to land a few [imgsmall=skills/karthus/q.png] so that it will keep her away. BE VERY careful when shes level 6 because her combo can instantly put you at half hp or lower. If you can, ask for your jungler for a gank on her because its fairly easy to bait Leblanc for a kill. Exhaust is highly recommended to have up if you bait though. Just keep your distance and try your best not to die while farming. [imgsmall=champ/lux.png] All her abilities are skillshots so do your best to avoid them while farming. The range of her AoE skillshot is very long and its radius is pretty big also. If you get hit by one of her spells then avoid her auto attack because you will have a debuff that lets her deal bonus damage if she auto attacks you. [imgsmall=champ/malzahar.png] Try your best to avoid getting hit by his silence ability. Don't stand near minions with the damage over time debuff, the spell bounces on the nearest target and will keep bouncing if the target dies. When he hits 6, watch out for a Flash + Ultimate combo which could lead to an easy kill on you especially if his jungler is on you too. Just farm and harass him whenever you see a good chance to give him pressure. [imgsmall=champ/mordekaiser.png] Try not to get harassed by this guy, its almost impossible to hurt him with his shield fully up. He'll just keep sustaining in lane with spell vamp items. Be careful when you fight him because his ultimate can almost heal him to full HP if he has a [imgsmall=items/will-of-the-ancients.png]. Just do your best to farm minions. [imgsmall=champ/orianna.png] Farm passively and harass her when you see a good chance. Avoid her skillshot ball ability and stay away from it. She can place it in the middle of the lane to try and zone you. It travels pretty slow so its kind of easy to dodge. Her auto-attack deals bonus damage based on bonus AP she has so watch out for it. [imgsmall=champ/morgana.png] This champion will constantly try to shove your lane to your tower, so do your best at farming at your tower. It should be relatively easy if you know the radius of your [imgsmall=skills/karthus/q.png] ability to hit creeps individually. Once you get blue buff you can shove the lane back much easier. Make sure Morgana does NOT have Black Shield active on her when you [imgsmall=summoners/exhaust.png] her or else it will have no effect. Do your best to avoid her skillshot snare ability. Flash out of her ultimate if you have to. [imgsmall=champ/sion.png] VERY annoying champion. Keep your distance and don't even try to break his shield because it will be hard to break his shield with your [imgsmall=skills/karthus/q.png] in time before he lands a stun and shield burst proc on you. Make sure to call MIA! when hes missing because most Sion players build [imgsmall=items/boots-of-mobility.png], which allows him to roam very fast and gank other lanes. [imgsmall=champ/twistedfate.png] He'll most likely push your lane and mind-f**k you with his card swaps. Just keep trying to push the lane back. When he hits level 6 always warn your teammates for his ultimate. Hes also a very squishy champion so try to harass him every chance you get with [imgsmall=skills/karthus/q.png] wisely. [imgsmall=champ/veigar.png] First thing you'll need is a Catalyst and Merc Treads. Every time he goes in to harass you try to punish him with [imgsmall=skills/karthus/q.png] and avoid his stun. Try your best to remember how far his stun can be casted. If you know this then you can turn around and juke the stun in time or simply just run faster than him and avoid it. Sometimes you can even bait his stun and stay in the middle of it, then follow up with your exhaust and spam your abilities on him for a kill. Hes one of the squishiest champions in the game. If you get hit by his full combo though, then you're most likely dead. [imgsmall=champ/xerath.png] Do your best to avoid his main skillshot ability. This guy can harass you from a far distane if he uses [imgsmall=skills/xerath/w.png]. Be extremely cautious when he hits level 6, because he can possibly instantly burst you down with his stun + ultimate combo. When he tries to go in to stun you, kite him and land some [imgsmall=skills/karthus/q.png] if you can. Always keep enough distance so that he can't tag you with the stun proc. [imgsmall=champ/ziggs.png] Dodge the bombs he throws. Don't stand ontop of minions because the bombs deal AoE damage and can hurt you. Watch out for his passive proc on his auto-attack because it deals a large amount of bonus damage based on his AP. [imgsmall=champ/zilean.png] This guy will just keep trying to harass you with bombs. Try keeping as much distance as you can and hit him with [imgsmall=skills/karthus/q.png] when he tries to get close. His ultimate is very annoying because it can save his teammates or himself when you use your ultimate. Before you decide to ultimate him when hes killable, check if he has enough mana to use his ultimate or know if his ultimate is possibly up or not. [highlight]HARD MATCHUPS FOR KARTHUS:[/highlight] [img=champ/leblanc.png][img=champ/kassadin.png][img=champ/veigar.png][img=champ/xerath.png] [highlight]CHAMPS ANNOYING TO DEAL WITH:[/highlight] [img=champ/sion.png][img=champ/annie.png][img=champ/zilean.png][img=champ/cassiopeia.png][img=champ/fizz.png]

You have two main goals during the early phase of the game: [.][highlight]Farm[/highlight] [.][highlight]Don't die[/highlight] During pre-laning phase, you can be very helpful to your team by scouting bushes with [imgsmall=skills/karthus/q.png]. Wherever you cast it will give vision of its small radius. Once you get to lane just farm and play passive until you see a good opportunity to harass the enemy or kill him. Normally you won't be able to get kills without your jungler, so it is best to wait for him. If you and your jungler can manage to get a kill mid, then that is great for you. You'll be ahead and that is exactly what you want. Once you get blue buff, you can take your own jungler's wraiths and wolves to keep staying ahead of everyone else. Always try to get the enemy's blue wraith too. ALSO, I said this many times, but if you die during lane phase it will be hard to come back into the game. Play passive and keep farming. Make sure to get a [imgsmall=items/sight-ward.png] on your first recall back to prevent yourself from being ganked. Once you hit 6, be on the look out for fights happening in other lanes. You can change the tides of a fight by just using your ultimate or cleaning up a kill that your teammate couldn't finish. Tell your team to ping for you just in case you fail to notice.

During mid-game phase you should be tankier because of [imgsmall=items/rod-of-ages.png] and less susceptible to dying. Keep farming as much as you can and try and get objectives whenever its possible. Remember that Karthus can clear objectives VERY fast because of his ability to spam Q constantly. He can clear objectives even faster with blue buff, so always try to get every blue buff possible. You should also roam around and gank other lanes whenever you see a good chance. You can place your wall on top of enemies and land an easy kill or force them to Flash away.

You've now reached Karthus' strongest point in the game. This is where all the farming counts and where you will shine the most. You should have a ridiculous amount of AP and damage now. Make sure to stick with your team and try to catch anyone out of position with your [imgsmall=skills/karthus/w.png]. It is a great tool to cut people off and catch people running away. If your team manages to pick a person off, you can easily rush a Baron if its up or proceed to pushing down an inhibitor. For your summoner spells, use [imgsmall=summoners/exhaust.png] on the BIGGEST THREAT on enemy team! Most likely the AD carry should be doing the most damage, so you'd want to shut him down with exhaust. Its really just situational and depends how your game went. For [imgsmall=summoners/flash.png] its never a bad idea to save it and [imgsmall=summoners/flash.png] on top of the enemy team right before you end up dying. It will allow the best placement for your [imgsmall=skills/karthus/e.png] to deal damage and a well placed [imgsmall=skills/karthus/w.png] can make everyone slow debuffed and stuck in it for a long period of time. This will cause devestating amounts of damage to the enemy team combined with your ultimate if its up. A Karthus ult with 600+ AP and a [imgsmall=items/void-staff.png] should deal around 1000 damage. Note: Make sure to buy [imgsmall=items/elixir-of-brilliance.png][imgsmall=items/elixir-of-fortitude.png][imgsmall=items/elixir-of-agility.png][imgsmall=items/oracles-elixir.png] if you're at the point where you can't buy anymore items.

Here are some links to replays of me playing Karthus in 2k+ elo matches. [highlight]Game #1:[/highlight] In this match I run the summoners Flash/Teleport to show the potential of being able to gank or counter-gank other lanes with Teleport. I also snowball in this game very well. Dominate is High, Chiat, The Rain Man, mandatorycloud, Jintae vs v8 UnstoppableX, Mashme, Turtledunkz, Maroy, ROBERTxLEE http://www.leaguereplays.com/replays/match/317254/ [highlight]Game #2:[/highlight] I run the usual summoners Flash/Exhaust. I become a hypercarry this game. Jintae, Dominate is High, The Rain Man, marcelo el chido, Nhat Nguyen vs SilSol, Ricest, Onebadbrad, Slackoh, t3azer http://www.leaguereplays.com/replays/match/317279/

I hope this guide helped you improve your play with Karthus or got you started on playing him. Thank you for reading my guide and for your support! [highlight]Please feel free to post any questions you may have in the comments section below and I'll be happy to answer them for you guys.[/highlight]

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