Jürgen Pfeiffer, Entrancer

Haste
At the beginning of each end step, create a 1/1
black Rat creature token for each creature you
don't own, unless the owner of that creature
pays {2} for each one, if they do, it gains control
of that creature. If you control ten or more
creatures you don't own, you win the game.
{1}{w}{u}{b},{t}: Gain control of target creature.