Stalwart Successor + Thermopod + Lesser Masticore

Stalwart Successor

Thermopod

Lesser Masticore

How it works

1. Activate Thermopod by sacrificing Lesser Masticore
2. When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Lesser Masticore enters, Stalwart Successor triggers, putting a +1/+1 counter on Lesser Masticore
4. Repeat.

This loop turns the interaction between Stalwart Successor and Lesser Masticore into a self-sustaining engine by playing the +1/+1 and -1/+1 counter mechanics against one another; every time Lesser Masticore enters the graveyard with persist, its return triggers Stalwart Successor to place a +1/+1 counter on it, which immediately cancels out the -1/-1 counter and resets its persist ability for the next cycle. Thermopod acts as the crucial sacrifice outlet that keeps the chain moving while simultaneously converting each iteration into a steady stream of red mana.