Koll, the Forgemaster, Demonmail Hauberk, Umbral Mantle, and Su-Chi Cave Guard

Prerequisites

• Koll, the Forgemaster on the battlefield
• Demonmail Hauberk on the battlefield
• Umbral Mantle on the battlefield
• Su-Chi Cave Guard on the battlefield

Steps

1. Activate Umbral Mantle's equip ability by paying , attaching it to Su-Chi Cave Guard
2. Activate Demonmail Hauberk by sacrificing Su-Chi Cave Guard, targeting Koll
3. When Su-Chi Cave Guard dies, it and Koll trigger
4. Resolve the Su-Chi Cave Guard trigger, adding eight
5. Resolve the Koll trigger, returning it from your graveyard to your hand
6. Resolve the Demonmail Hauberk ability, attaching it to Koll
7. Cast Su-Chi Cave Guard by paying its mana cost
8. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count