Nim Deathmantle, Thermopod, and Ponyback Brigade

Prerequisites

• Nim Deathmantle on the battlefield
• Thermopod on the battlefield
• Ponyback Brigade on the battlefield
• available

Steps

1. Activate Thermopod's second ability by sacrificing Ponyback Brigade, adding
2. Ponyback Brigade dies, triggering Nim Deathmantle, causing you to pay to return Ponyback Brigade from your graveyard to the battlefield, and attach Nim Deathmantle to it
3. Ponyback Brigade enters the battlefield, creating three 1/1 Goblin creature tokens
4. Activate Thermopod three times by sacrificing the Goblins, adding
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers