Koll, the Forgemaster, Phyrexian Altar, Thornbite Staff, and Goblin Arsonist

Prerequisites

• Koll, the Forgemaster on the battlefield
• Phyrexian Altar on the battlefield
• Thornbite Staff on the battlefield
• Goblin Arsonist in hand
• available

Steps

1. Cast Goblin Arsonist by paying
2. Goblin Arsonist enters the battlefield, triggering Thornbite Staff, attaching it to Goblin Arsonist
3. Activate Phyrexian Altar by sacrificing Goblin Arsonist, adding
4. Goblin Arsonist dies, triggering itself, Koll, and Thornbite Staff
5. Resolve Goblin Arsonist's trigger, dealing 1 damage to any target
6. Resolve Koll's trigger, returning Goblin Arsonist from your graveyard to your hand
7. Resolve Thornbite Staff's trigger, accomplishing nothing
8. Repeat

Results

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