Elsa Goldmane

+1: Put three 2/1 Cat white Cat Soldier tokens with Haste on your side of the battlefield. Exile them at the end of your turn.
0: Elsa is a 3/1 Cat Soldier with Indestructible, Double strike. and Vigilance until your next upkeep.
-4: Creatures you control gain +3/+1, Double Strike, and Vigilance until your next upkeep.