Koll, the Forgemaster, Demonmail Hauberk, Crookshank Kobolds, and Shield Sphere

Prerequisites

• Koll, the Forgemaster on the battlefield
• Demonmail Hauberk on the battlefield
• Crookshank Kobolds on the battlefield
• Shield Sphere on the battlefield
• Demonmail Hauberk attached to Crookshank Kobolds

Steps

1. Activate Demonmail Hauberk's equip ability by sacrificing Crookshank Kobolds, targeting Shield Sphere
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 Shield Sphere
4. Cast Crookshank Kobolds by paying
5. Activate Demonmail Hauberk's equip ability by sacrificing Shield Sphere, targeting Crookshank Kobolds
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 Crookshank Kobolds
8. Cast Shield Sphere by paying
9. Repeat

Results

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