Prerequisites
- Sin, Unending Cataclysm in hand or in the command zone
- Intruder Alarm on the battlefield
- Blasting Station on the battlefield
- Heronblade Elite on the battlefield
- plus commander tax if applicable available 
Steps
- Cast Sin either from your hand or command zone by paying plus commander tax if applicable 
- As Sin enters, remove all counters from all artifacts, enchantments and creatures you control, putting twice that many +1/+1 counters on Sin
- When Sin enters, Intruder Alarm and Blasting Station trigger, untapping all creatures and Blasting Station
- Activate Blasting Station by tapping it and sacrificing Sin
- Choose to return Sin to the command zone from your graveyard
- When Sin dies, it triggers, putting its counters on Heronblade Elite
- Resolve the Blasting Station ability
- Activate Heronblade Elite by tapping it, adding an amount of or equal to its power 
- Repeat
Results
- Infinite LTB
- Infinite ETB
- Infinite colored mana
- Infinite sacrifice triggers
- Infinite death triggers
- Infinite damage
- Infinite storm count
- Infinite mana creatures you control can produce
- Infinite untap of all creatures
- Infinite commander casts
- Infinite +1/+1 counters on a creature
Required Cards 4
 - Sin, Unending Cataclysm- Legendary Creature — Leviathan Avatar 
 - Intruder Alarm- Enchantment 
 - Blasting Station- Artifact 
 - Heronblade Elite- Creature — Human Warrior 
 
 
 
