Ob Nixilis, Captive Kingpin, Mortuary, Goblin Arsonist, and Skirk Prospector

Prerequisites

• Ob Nixilis, Captive Kingpin on the battlefield
• Mortuary on the battlefield
• Goblin Arsonist on the battlefield
• Skirk Prospector on the battlefield

Steps

1. Activate Skirk Prospector by sacrificing Goblin Arsonist, adding
2. When Goblin Arsonist dies, it and Mortuary trigger
3. Resolve the Mortuary trigger, putting Goblin Arsonist on top of your library from your graveyard
4. Resolve the Goblin Arsonist trigger, dealing 1 damage to an opponent
5. Ob Nixilis triggers, putting a +1/+1 counter on itself, and exiling Goblin Arsonist from the top of your library with the ability to play it until your end step
6. Cast Goblin Arsonist from exile by paying
7. Repeat

Results

• Infinite +1/+1 counters on Ob Nixilis
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count