Koll, the Forgemaster, Demonmail Hauberk, Kobolds of Kher Keep, and Shield Sphere

Prerequisites

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

Steps

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

Results

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