Heartsteel

Unique – Colossal Consumption: While within 700 units of an enemy champion, generate a stack on them each second, stacking up to 3 times. Your next basic attack against a target with 3 stacks is empowered to consume them all to deal 80 (+ 12% bonus health from items) bonus physical damage on-hit and grant you permanent bonus health equal to 12% of that amount  (30 (per target) second cooldown).

Unique – Goliath: Gain 0% − 30% (based on maximum health) increased size.

Limited to 1 Heartsteel.