Mirrodin Besieged + Myr Retriever + Scrap Trawler + Krark-Clan Ironworks

Prerequisites

• "Mirran" chosen with Mirrodin Besieged.

Steps

1. 1Activate Krark-Clan Ironworks by sacrificing Scrap Trawler, adding .
2. 2When Scrap Trawler dies, it triggers, returning Myr Retriever from your graveyard to your hand.
3. 3Cast Myr Retriever by paying .
4. 4Mirrodin Besieged triggers, creating a 1/1 Myr artifact creature token.
5. 5Activate Krark-Clan Ironworks twice by sacrificing the Myr and Myr Retriever, adding .
6. 6When Myr Retriever dies, it triggers, returning Scrap Trawler from your graveyard to your hand.
7. 7Cast Scrap Trawler by paying .
8. 8Mirrodin Besieged triggers, creating a 1/1 Myr artifact creature token.
9. 9Repeat.

Effects

• Infinite colorless mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count