Koll, the Forgemaster, Rograkh, Son of Rohgahh, Demonmail Hauberk, and Crookshank Kobolds

Prerequisites

• Koll, the Forgemaster on the battlefield
• Rograkh, Son of Rohgahh on the battlefield
• Demonmail Hauberk on the battlefield
• Crookshank Kobolds on the battlefield
• Demonmail Hauberk attached to Crookshank Kobolds

Steps

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

Results

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