Hexavus + Thermopod

Hexavus

Thermopod

How it works

1. Activate Thermopod's second ability by sacrificing the persist creature, adding .
2. When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Activate Hexavus' second ability by paying 1 and removing the -1/-1 counter from the persist creature, putting a +1/+1 counter on Hexavus.
4. Repeat.