Rambling Possum

Whenever Rambling Possum attacks while saddled, it gets +1/+2 until end of turn. Then you may return any number of creatures that saddled it this turn to their owner's hand.
Saddle 1 (Tap any number of creatures you control with total power of 1 or more: This mount becomes saddled until end of turn.
Saddle only as Sorcery.)