Steel-Plume Marshal 3WW
Creature- Bird Soldier
Whenever Steel-Plume Marshal attacks, other attacking creatures you control with flying get +2/+2 until end of turn. The defenders watched in terror as the flying V split apart into a bristling battle formation.
One of the rares of the flying-matters theme, and the first mono-white card to care about fliers in recent memory.
Marshal probably works better in a go wide flying token strategy than anywhere. My flying deck for EDH tends to only want to attack with a few big flyers strategically. The Marshal isn't going to be overly impressive in that strategy though it does make early flyers into finishers so it's certainly not without uses.