Sin, Unending Cataclysm + Verdant Succession + Goblin Bombardment
Sin, Unending Cataclysm
Verdant Succession
Goblin Bombardment
Infinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite damageInfinite +1/+1 counters on creatures you control
How it works
Activate Goblin Bombardment 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.