Nim Deathmantle, Su-Chi, and Ashnod's Altar

Prerequisites

• Nim Deathmantle on the battlefield
• Su-Chi on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Su-Chi, adding
2. Su-Chi and Nim Deathmantle trigger
3. Resolve the Su-Chi trigger, adding
4. Resolve the Nim Deathmantle trigger, causing you to pay to return Su-Chi from your graveyard to the battlefield, and then attach Nim Deathmantle to it
5. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers