Voltaic Construct, The Blackstaff of Waterdeep, and Chromatic Orrery

Prerequisites

• Voltaic Construct on the battlefield
• The Blackstaff of Waterdeep on the battlefield
• Chromatic Orrery on the battlefield
• Chromatic Orrery does not have summoning sickness

Steps

1. Activate Chromatic Orrery's first ability by tapping it, adding
2. Activate The Blackstaff of Waterdeep by paying and tapping it, causing Chromatic Orrery to become an artifact creature until end of turn
3. Activate Voltaic Construct by paying , untapping Chromatic Orrery
4. Activate Chromatic Orrery's first ability by tapping it, adding
5. Repeat from step 3
6. Once you have infinite mana, you may instead use Chromatic Orrery's second ability to draw infinite cards

Results

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