Brightfield Glider (DFT 4)

Creature — Possum Mount • Mana cost: {W} • Aetherdrift • Common

Vigilance
Whenever this creature attacks while saddled, it gets +1/+2 and gains flying 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.)

Illustrated by Andreia Ugrai.