The Underworld Cookbook, Academy Manufactor, Clock of Omens, and Metalwork Colossus

Prerequisites

• The Underworld Cookbook on the battlefield
• Academy Manufactor on the battlefield
• Clock of Omens on the battlefield
• Metalwork Colossus in hand

Steps

1. Activate The Underworld Cookbook's first ability by tapping it and discarding Metalwork Colossus, creating a Food token, a Clue token, and a Treasure tokens
2. Activate Clock of Omens by tapping two artifact tokens, untapping The Underworld Cookbook
3. Activate Metalwork Colossus by sacrificing two artifact tokens, returning it from your graveyard to your hand
4. Repeat

Results

• Infinite colored mana
• Infinite lifegain triggers
• Infinite lifegain
• Infinite card draw
• Infinite self-discard triggers
• Infinite draw triggers
• Infinite mana artifacts you control can produce
• Infinite Treasure tokens
• Infinite untap of artifacts you control
• Infinite Clue tokens
• Infinite Food tokens