Koll, the Forgemaster, Demonmail Hauberk, Crimson Kobolds, and Kobolds of Kher Keep

Prerequisites

• Koll, the Forgemaster on the battlefield
• Demonmail Hauberk on the battlefield
• Crimson Kobolds on the battlefield
• Kobolds of Kher Keep on the battlefield
• Demonmail Hauberk attached to Crimson Kobolds

Steps

1. Activate Demonmail Hauberk's equip ability by sacrificing Crimson Kobolds, targeting Kobolds of Kher Keep
2. When Crimson Kobolds dies, Koll triggers, returning Crimson Kobolds from your graveyard to your hand
3. Resolve the Demonmail Hauberk ability, attaching it to Kobolds of Kher Keep
4. Cast Crimson Kobolds by paying
5. Activate Demonmail Hauberk's equip ability by sacrificing Kobolds of Kher Keep, targeting Crimson Kobolds
6. When Kobolds of Kher Keep dies, Koll triggers, returning Kobolds of Kher Keep from your graveyard to your hand
7. Resolve the Demonmail Hauberk ability, attaching it to Crimson Kobolds
8. Cast Kobolds of Kher Keep by paying
9. Repeat

Results

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