Skarner Ability (LoL): Crystallizing Sting

Skarner's damaging spells apply Crystal Venom the enemies for 5 seconds, stacking up to 3 times.

Attacking an enemy with 3 stacks consumes them to deal 15 + (5 × Skarner's level) bonus magic damage and stun the target for 0.5 / 0.75 / 1 seconds. Skarner cannot apply Crystal Venom to his target for 6 seconds after he stuns them.