Derevi, Empyrial Tactician, Chromatic Orrery, and Ashnod's Altar

Prerequisites

• Derevi, Empyrial Tactician in the command zone
• Chromatic Orrery on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Tap Chromatic Orrery for 5
2. Activate Derevi to put it into play and untap Chromatic Orrery with its enter the battlefield trigger
3. Sacrifice Derevi to Altar
4. Repeat

Results

• Infinite card draw
• Infinite colored mana
• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite untap