Asta, Devil Union

Double Strike, Flying, Trample, Hexproof When this creature enters, sacrifice up to three black bull cards. •If at least 1 was sacrificed return target permanent from your graveyard to the battlefield, it gains hexproof until this card leaves the battlefield. •If at least 2 was sacrificed all black bulls have menace until this card leaves the battlefield. •If 3 were sacrificed put a +1/+1 on each black bull, they all proliferate 3. When this creature dies un-transform it.