Rix Maadi Chainmage

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 on it.)
Whenever you unleash a creature, you may gain control of target creature an opponent controls until end of turn. If you do, untap that creature and it gains haste until end of turn.
Her chains can break both body and mind.