Soul Warden

Whenever another creature enters, you gain 1 life.

Suture Priest

Whenever another creature you control enters, you may gain 1 life.
Whenever a creature an opponent controls enters, you may have that player lose 1 life.

Diving Griffin

Armored Griffin

Abbey Griffin

Griffin Sentinel

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

Concerted Effort

At the beginning of each upkeep, creatures you control gain flying until end of turn if a creature you control has flying. The same is true for fear, first strike, double strike, landwalk, protection, trample, and vigilance.

Mtenda Griffin

Flying
{W}, {T}: Return Mtenda Griffin to its owner's hand and return target Griffin card from your graveyard to your hand. Activate only during your upkeep.

Sunspire Griffin

Zuberi, Golden Feather

Flying
Other Griffin creatures get +1/+1.

Griffin Rider

As long as you control a Griffin creature, Griffin Rider gets +3/+3 and has flying.

Urza's Incubator

As Urza's Incubator enters, choose a creature type.
Creature spells of the chosen type cost {2} less to cast.

Razorfoot Griffin

Flying (This creature can't be blocked except by creatures with flying or reach.)
First strike (This creature deals combat damage before creatures without first strike.)

Anointed Procession

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

Archon of Redemption

Flying
Whenever Archon of Redemption or another creature you control with flying enters, you may gain life equal to that creature's power.

Silverbeak Griffin

Flying (This creature can't be blocked except by creatures with flying or reach.)

Bladegriff Prototype

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

True Conviction

Creatures you control have double strike and lifelink.

Daraja Griffin

Flying
Sacrifice Daraja Griffin: Destroy target black creature.

Ekundu Griffin

Soul's Attendant

Whenever another creature enters, you may gain 1 life.

Legion Loyalty

Creatures you control have myriad. (Whenever a creature with myriad attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)