Esnire, Emerging Wild

Rupture 2 (When you cast this card, you may cast it during your combat step. if you do, you may remove as many +1/+1 counters off of creatures you control. if you do, this card costs {2} less for each +1/+1 counter removed this way.)
Riot
Whenever you Rupture Isnir, Emerging Wild and it enters with a +1/+1 counter on it, you may Rupture it tapped and attacking.
{t}: Put +1/+1 counters on any amount of attacking creatures you control with haste.