Esior, Wardwing Familiar is a uncommon Legendary Creature — Bird card from Commander Legends (CMR), collector number 67. Current market price: $0.54 (foil $0.86), TCGplayer market prices via Scryfall.
Flying Spells your opponents cast that target one or more commanders you control cost {3} more to cast. Partner (You can have two commanders if both have partner.)