Magic The Gathering Cards of types 'Bear' and 'Bird'

Mama's Coming - Whenever this creature attacks a player who controls eight or more lands, look at the top eight cards of your library. You may put a creature card from among them onto the battlefield tapped and attacking that player. Put the rest on the bottom of your library in a random order.

Trample Keen Senses - When this creature enters, draw a card.

Vigilance, trample When this creature transforms into Casal, Pathbreaker Owlbear, other legendary creatures you control get +2/+2 and gain trample until end of turn. At the beginning of your upkeep, transform Casal.