Master Yi Ability (LoL): Highlander

Passive: Champion kills and assists reduce the cooldowns of Master Yi's other abilities by 70%.

Active: For 7 seconds, Master Yi gains 35 / 45 / 55% bonus movement speed and 25 / 45 / 65% attack speed and becomes immune to any slows. Master Yi also ignores unit collision for the duration of this effect. While active, kills and assists extend the duration by 7 seconds.