March of the Machines, Chromatic Orrery, and Umbral Mantle

Prerequisites

• March of the Machines on the battlefield
• Chromatic Orrery on the battlefield
• Umbral Mantle on the battlefield
• Umbral Mantle attached to Chromatic Orrery
• Chromatic Orrery does not have summoning sickness

Steps

1. Activate Chromatic Orrery's first ability by tapping it, adding
2. Activate Chromatic Orrery by paying and untapping it, giving itself +2/+2 until end of turn
3. Repeat
4. Once you have an infinite amount of , you may use it to activate Chromatic Orrery's last ability

Results

• Infinite card draw
• Infinite colored mana
• Infinite colorless mana
• Infinite draw triggers
• Infinitely large Chromatic Orrery until end of turn