Buckbeak, Prideful Hippogriff

Flying

Whenever another creature attacks, if Buckbeak is untapped, you may tap Buckbeak, put a +1/+1 counter on him and have him fight target attacking creature.

Whenever this creature attacks while saddled, it gets Vigilance and Trample until end of turn.

Saddle 3 (Tap any number of other creatures you control with total power 3 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)