Magewright's Stone, Synod Artificer, and Chromatic Orrery

Prerequisites

• Magewright's Stone on the battlefield
• Synod Artificer on the battlefield
• Chromatic Orrery on the battlefield
• Synod Artificer does not have summoning sickness

Steps

1. Activate Chromatic Orrery's first ability by tapping it, adding
2. Activate Synod Artificer's second ability by paying and tapping it, untapping Chromatic Orrery and Magewright's Stone
3. Activate Magewright's Stone by paying and tapping it, untapping Synod Artificer
4. Repeat
5. Once you have infinite mana, you may activate Chromatic Orrery's second ability instead to draw infinite cards

Results

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