Sin, Unending Cataclysm + Aura of Dominion + Blasting Station + Heronblade Elite

Sin, Unending Cataclysm

Aura of Dominion

Blasting Station

Heronblade Elite

How it works

1. Cast Sin either from your hand or command zone by paying 5 plus commander tax if applicable.
2. As Sin enters, remove all counters from all artifacts, enchantments and creatures you control, putting twice that many +1/+1 counters on Sin.
3. When Sin enters, Blasting Station triggers, untapping Blasting Station.
4. Activate Aura of Dominion by paying 1 and tapping Sin, untapping Heronblade Elite.
5. Activate Blasting Station by tapping it and sacrificing Sin.
6. Choose to return Sin to the command zone from your graveyard.
7. When Sin dies, it triggers, putting its counters on Heronblade Elite.
8. Resolve the Blasting Station ability.
9. Activate Heronblade Elite by tapping it, adding an amount of or equal to its power.
10. Repeat.

This ingenious loop turns Sin, Unending Cataclysm into a recyclable battery that feeds on its own staggering size. By enchanting Heronblade Elite with Aura of Dominion, you create an engine where tapping Sin to untap the Elite—while paying the activation cost with mana generated by the Elite itself—fuels your entire setup. Blasting Station provides the final outlet by sacrificing Sin for lethal damage, immediately untapping itself upon Sin's reentry and letting you loop the commander ad infinitum.