Wanted Griffin

Flying
When this creature dies, create a 1/1 red Mercenary creature token with "{T}: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Zeriam, Golden Wind

Flying
Whenever a Griffin you control deals combat damage to a player, create a 2/2 white Griffin creature token with flying.

True Conviction

Creatures you control have double strike and lifelink.

Fearless Fledgling

Landfall — Whenever a land you control enters, put a +1/+1 counter on this creature. It gains flying until end of turn.

Bladegriff Prototype

Flying
Whenever this creature deals combat damage to a player, destroy target nonland permanent of that player's choice that one of your opponents controls.

Unyaro Griffin

Flying
Sacrifice this creature: Counter target red instant or sorcery spell.

Courier Griffin

Flying
When this creature enters, you gain 2 life.

Sol Ring

Griffin Sentinel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Zuberi, Golden Feather

Flying
Other Griffin creatures get +1/+1.