Brightfield Mustang (DFT 5)

Creature — Horse Mount • Mana cost: {3}{W} • Aetherdrift • Common

Whenever this creature attacks while saddled, untap it and put a +1/+1 counter on it.
Saddle 1 (Tap any number of other creatures you control with total power 1 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

Illustrated by Slawomir Maniak.