Charlie Sheen from two and a half men.
Passive: Gains 10 gold a second from jingle royalties.
Q. Consume alcohol.
Charlie Sheen drinks some vodka and chucks the glass at a target and deals aoe damage.
Charlie bets on a gaming event. If he wins, selected enemy champion instantly gets killed. If he loses, he instantly kills the champion himself out of sheer rage.
E. Tiger blood:
Charlie blinks over a certain distance, pulls out a Tiger, Sucks his blood out, and gains an AD/AP/Armor/Mr/Mspeed/Hp/Mana steroid. Also does aoe damage with 1,000 radius.
R. Duh, Winning:
Available at 20 minutes into the game.
Charlie Sheen automatically wins.