What ability in the game is the most overloaded?

i thought we could all do a thing where we list one ability of a champ that is overloaded as in it does a butt fuckton of things. I'll start with an example

Twin Fang RANGE: 700 COST: 50 / 60 / 70 / 80 / 90 MANA COOLDOWN: 5 Twin Fang ACTIVE: Cassiopeia fires fangs at an enemy, dealing magic damage and applying a stacking debuff that amplifies further Poison icon poison damage by 20%. MAGIC DAMAGE: 55 / 80 / 105 / 130 / 155 (+ 55% AP) Twin Fang's debuff stacks twice for a maximum of 40% amplification. If her target is Poison icon poisoned, Twin Fang's cooldown is reduced to 0.5 seconds (not reduced by cooldown reduction). If Twin Fang kills the target, refunds its mana cost plus 1.5% of her maximum mana.

(Copy n pasted from wikia lol)

Her E is an hp(interaction with her passive) mana sustain tool, that also amplifies dmg to target, helps her farm minions, and DPS the daylights out of her intended target.