Gluttonous Troll, Nim Deathmantle, Krark-Clan Ironworks, and Ashnod's Altar

Prerequisites

• Gluttonous Troll on the battlefield
• Nim Deathmantle on the battlefield
• Krark-Clan Ironworks on the battlefield
• Ashnod's Altar on the battlefield
• You have at least two opponents
• available

Steps

1. Activate Ashnod's Altar by sacrificing Gluttonous Troll, adding
2. Gluttonous Troll dies, triggering Nim Deathmantle, causing you to pay to return Gluttonous Troll from your graveyard to the battlefield, and attach Nim Deathmantle to it
3. When Gluttonous Troll enters the battlefield, it triggers, creating at least two Food artifact tokens
4. Activate Krark-Clan Ironworks by sacrificing a Food, adding
5. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite Food tokens
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite sacrifice triggers