Abzan Falconer is a uncommon Creature — Human Soldier card from Commander Anthology Volume II (CM2), collector number 15. Current market price: $0.43, 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.