Ajani, Strength of Pride

+1: You gain life equal to the number of creatures you control plus the number of planeswalkers you control.
-2: Create a 2/2 white Cat Soldier creature token named Ajani's Pridemate w/"Whenever you gain life, put a +1/+1 counter on Ajani's Pridemate."
0: If u have at least 15 life more than your starting life total, exile Ajani, Strength of Pride & each artifact & creature your opponents control.