When you cast this spell, gain control of target creature until end of turn. Untap it. It gains menace and haste until end of turn. The Beast enters tapped with six stun counters on it. (If it would become untapped, remove a stun counter from it instead.) Whenever a creature deals combat damage to its owner, untap The Beast and draw a card.

When this creature enters from a graveyard, target opponent gains control of it. Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Target opponent reveals their hand. You may put a creature card from it onto the battlefield under your control. That creature gains haste. Sacrifice it at the beginning of the next end step.