Call of the Protector

(You may cast a legendary instant only if you control a legendary creature or planeswalker.)
Collaborate with Ajani (As you cast this, you may remove any amount of loyalty counters from an Ajani planeswalker you control. Each loyalty counter removed this way pays for {1}.)
Create X 2/2 white Cat Warrior creature tokens with lifelink. If it's your combat step, they are tapped and attacking.