Errant, Street Artist, Ghostly Flicker, Narset's Reversal, and Chromatic Orrery

Prerequisites

• Errant, Street Artist on the battlefield
• Ghostly Flicker in hand
• Narset's Reversal in hand
• Chromatic Orrery on the battlefield
• available

Steps

1. Activate Chromatic Orrery's first ability by tapping it, adding
2. Cast Ghostly Flicker by paying tageting any two applicable permanents
3. Holding priority, cast Narset's Reversal by paying , creating a copy of Ghostly Flicker targeting any two applicable permanents and returning Ghostly Flicker to your hand
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

Results

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