Sydri, Galvanic Genius, Voltaic Construct, and Chromatic Orrery

Prerequisites

• Sydri, Galvanic Genius on the battlefield
• Voltaic Construct on the battlefield
• Chromatic Orrery on the battlefield
• Chromatic Orrery does not have summoning sickness
• available

Steps

1. Activate Sydri by paying , causing Chromatic Orrery to become an artifact creature until end of turn
2. Activate Chromatic Orrery by tapping it, adding
3. Activate Voltaic Construct by paying , untapping Chromatic Orrery
4. Repeat from step 2

Results

• Infinite card draw
• Infinite colored mana
• Infinite colorless mana