Sin, Unending Cataclysm + Verdant Succession + Thermopod
Sin, Unending Cataclysm
Verdant Succession
Thermopod
Infinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite red manaInfinite +1/+1 counters on creatures you control
How it works
Activate Thermopod by sacrificing Sin.
When Sin dies, it and Verdant Succession trigger.
Resolve the Sin trigger, moving any counters from it onto another creature you control, and then shuffling Sin into your library.
Resolve the Verdant Succession trigger, searching your library for Sin and putting it onto the battlefield.