Sin, Unending Cataclysm, Aura of Dominion, Phyrexian Altar, and Heronblade Elite

Prerequisites

• Sin, Unending Cataclysm in hand or in the command zone
• Aura of Dominion on the battlefield
• Phyrexian Altar on the battlefield
• Heronblade Elite on the battlefield
• plus commander tax if applicable available

Steps

1. Cast Sin either from your hand or command zone by paying 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. Activate Aura of Dominion by paying and tapping Sin, untapping Heronblade Elite
4. Activate Phyrexian Altar by sacrificing Sin, adding
5. Choose to return Sin to the command zone from your graveyard
6. When Sin dies, it triggers, putting its counters on Heronblade Elite
7. Activate Heronblade Elite by tapping it, adding an amount of or equal to its power
8. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite commander casts
• Infinite +1/+1 counters on a creature