Red Hulk + Spitemare + Selfless Spirit

Red Hulk

Spitemare

Selfless Spirit

How it works

1. Give Red Hulk and Spitemare indestructible using Selfless Spirit.
2. Deal damage to Red Hulk.
3. Red Hulk triggers, putting a +1/+1 counter on it and dealing damage to Spitemare.
4. Spitemare triggers, dealing damage to Red Hulk.
5. Repeat from step 3.

This brilliant feedback loop turns a simple spark of damage into an unstoppable kinetic cycle. With Selfless Spirit already having sacrificed itself to grant both Red Hulk and Spitemare absolute protection via indestructible, you can safely kick things off by dealing an initial point of damage to Red Hulk. That damage triggers Red Hulk's enrage ability to grow with a +1/+1 counter and hurl damage at Spitemare, which in turn triggers Spitemare to blast Red Hulk right back. Because both creatures shrug off the damage thanks to their indestructible status, they bounce the hit back and forth indefinitely, piling up limitless +1/+1 counters on Red Hulk and dealing infinite damage to any target you choose.