Abzan Falconer is a uncommon Creature — Human Soldier card from March of the Machine Commander (MOC), collector number 165. Current market price: $1.13, TCGplayer market prices via Scryfall.
Outlast {W} ({W}, {T}: Put a +1/+1 counter on this creature. Outlast only as a sorcery.) Each creature you control with a +1/+1 counter on it has flying.