Syr Sarren the Windrider

Vigilance

Knight creatures you control saddle Mounts as though its power were 2 greater.

Whenever Syr Sarren enters the battlefield, create
a 2/2 green and blue drake creature token with
flying and "Whenever this creature attacks while
saddled, the creatures that saddled it gain flying until end of turn." and "Saddle 2 "