Errant, Street Artist, Ghostly Flicker, Chandra, Hope's Beacon, and Chromatic Orrery

Prerequisites

• Errant, Street Artist on the battlefield
• Ghostly Flicker in hand
• Chandra, Hope's Beacon on the battlefield
• Chromatic Orrery on the battlefield
• You have not copied a spell using Chandra this turn

Steps

1. Activate Chromatic Orrery's first ability by tapping it, adding
2. Cast Ghostly Flicker by paying tageting any two applicable permanents
3. Chandra triggers, creating a copy of Ghostly Flicker targeting any two applicable permanents
4. Holding priority, activate Errant by paying and tapping it, creating a copy of the Ghostly Flicker copy targeting Errant and Chromatic Orrery
5. Resolve the first copy of Ghostly Flicker, blinking Errant and Chromattic Orrery
6. Activate Chromatic Orrery's first ability by tapping it, adding
7. Repeat from step 4
8. Once you have infinite mana, you may instead activate Chromatic Orrery's second ability to draw infinite cards

Results

• Infinite card draw
• Infinite colored mana
• Infinite colorless mana
• Infinite draw triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers