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Karthus

Karthus

the Deathsinger

Mage
Magical Damage
Mid
Counter items & Summoner spells:
Counter mechanics:

Deny Blue Buff

Deny Farm

Dodge Abilities

Hard CC

Outsustain

Play aggressive early game

Health Points: 390 (+75 / per level) Health Regen: 5.5 (+0.55 / per level)
Mana Points: 270 (+61 / per level) Mana Regen: 6.5 (+0.6 / per level)
Damage: 42.2(+3.25 / per level) Attack Speed: 0.625 (+2.11 / per level)
Attack Range: 450 Movement Speed: 310
Armor: 11 (+3.5/ per level) Magic Resistance: 30 (+0/ per level)
Influence Points (IP): 3150 Riot Points (RP): 975
Upon dying, Karthus enters a spirit form, which allows him to continue casting spells for 7 seconds. During this time, his abilities cost no mana.
Active: After a 0.5 second delay, Karthus blasts target area at the cursors position, dealing magic damage to every enemy in the area. The damage is doubled if it only hits one unit.
Cooldown: 1 second
Range to Center of AoE: 875
Radius of AoE: 100

Cost: 20/26/32/38/44 mana
Magic Damage (Multiple Target): 40/60/80/100/120 (+0.3 per ability power)
Magic Damage (Single Target): (+0.6 per ability power)/80/120/160/200/240
Active: Karthus creates a wall between 2 obelisks at target position for 5 seconds. Enemies who pass this wall have their armor, magic resistance, and movement speed reduced for 5 seconds.
Cost: 100 mana
Cooldown: 18 seconds
Range to Center of Wall: 1000

Wall Length: 800/900/1000/1100/1200
Maximum Wall Sight est.: 1300/1325/1350/1375/1400
Armor and Magic Resist Reduction: 15/20/25/30/35
Slow: 40/50/60/70/80 %
Toggle Off: When Karthus kills a unit, he restores mana.
Toggle On: Karthus surrounds himself with the souls of his victims, dealing magic damage per second for a high mana cost.
Radius of AoE: 550

Mana Restored: 20/27/34/41/48 per kill
Cost: 30/42/54/66/78 mana per second
Magic Damage: 30/50/70/90/110 (+0.2 per ability power)
Active: After channeling for 3 seconds, Karthus deals magic damage to all enemy champions regardless of distance.

Cost: 150/175/200 mana
Cooldown: 200/180/160 seconds
Magic Damage: 250/400/550 (+0.6 per ability power)

Karthus

Counter Tips
If you see that he has low mana, just ignore him and don't kill him. This will deny him from casting any spells using his passive.
Step away from his corpse when he dies, as his defile will do massive damage to you if you stand in it.
Buying a hexdrinker or a Banshee's Veil will greatly increase your chance to survive Requiem.