Priest of Gix, Nim Deathmantle, and Ashnod's Altar

Prerequisites

• Priest of Gix on the battlefield
• Nim Deathmantle on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Priest of Gix adding
2. Priest of Gix dies, triggering Nim Deathmantle, causing you to pay to return Priest of Gix from your graveyard to the battlefield, and attach Nim Deathmantle to it
3. Priest of Gix enters the battlefield, adding
4. Repeat

Results

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