Lulu, Forgetful Hollyphant

Flying
Specialize
When Lulu, Forgetful Hollyphant enters the battlefield, you get a boon with “When you cast your next creature spell without flying, it perpetually gains flying.”

Rest in Peace

When Rest in Peace enters the battlefield, exile all cards from all graveyards.
If a card or token would be put into a graveyard from anywhere, exile it instead.

Cat

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Leonin Warleader

Whenever Leonin Warleader attacks, create two 1/1 white Cat creature tokens with lifelink that are tapped and attacking.