Dubie

Flying, Hexproof, Indestructible
Whenever Dubie enters the battlefield,
exile target nerd.
{t}{x} Neck Punch: Deals {x} damage to
all dumbasses. (All creatures, players, and planeswakers.)
You may summon Mr. Nicholas at any time
from any place for no cost,
but Dubie must retire after 3 turns.