Sin, Unending Cataclysm + Aura of Dominion + Blasting Station + Arbor Adherent

Sin, Unending Cataclysm

Aura of Dominion

Blasting Station

Arbor Adherent

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 Arbor Adherent by tapping it, adding an amount of or equal to Sin's toughness.
5. Activate Aura of Dominion by paying 1 and tapping Sin, untapping Arbor Adherent.
6. Activate Blasting Station by tapping it and sacrificing Sin.
7. Choose to return Sin to the command zone from your graveyard.
8. When Sin dies, it triggers, putting its counters on Arbor Adherent.
9. Resolve the Blasting Station ability.
10. Repeat.

This vicious loop turns Sin, Unending Cataclysm into an infinitely recurring engine by leveraging its massive stat growth when entering the battlefield. By enchanting Arbor Adherent with Aura of Dominion, tapping Sin to untap the mana dork fuels the continuous activation costs while generating an abundance of colored mana. Blasting Station provides the final execution by sacrificing Sin, which triggers its own untap and allows you to constantly recycle the commander from the command zone. Finally, whenever Sin dies, its death trigger dumps its accumulated +1/+1 counters back onto Arbor Adherent, ensuring the loop's mana production scales exponentially with each iteration.