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League of Legends Champion Guides

Karthus Ability (LoL): Defile

Defile Karthus

Range: 425

Cost: 30 / 42 / 54 / 66 / 78

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 (+20% of ability power) damage to nearby enemies each second.