Vena, Captivating Rebel

Haste
When Vena, Captivating Rebel enters the battlefield, for each of your opponents, gain control of target creature that player controls.
Untap it and it gains haste until end of turn. At the beginning of the next end step, return each creature you control but don't own to it's owner's control unless a creature you don't own or Vena, Captivating Rebel has dealt combat damage to a player this turn.