Lithoform Engine, Chromatic Orrery, and Tezzeret the Seeker

Prerequisites

• Lithoform Engine on the battlefield
• Chromatic Orrery on the battlefield
• Tezzeret the Seeker on the battlefield

Steps

1. Tap Chromatic Orrery for
2. Activate Tezzeret, targeting Lithoform engine and Chromatic Orrery
3. With the ability on the stack, activate Lithoform Engine, copying the ability
4. Target Lithoform Engine and Chromatic Orrery with the untap, and let it resolve
5. Repeat steps 2-3

Results

• Infinite card draw
• Infinite draw triggers
• Infinite colorless mana
• Infinite colored mana
• Infinite untap of artifacts you control