Trazyn the Infinite, Chromatic Orrery, and Crab Umbra

Prerequisites

• Trazyn the Infinite on the battlefield
• Chromatic Orrery in the graveyard
• Crab Umbra on the battlefield
• undefined

Steps

1. Activate Trazyn using Chromatic Orrery's first ability by tapping it, adding
2. Activate Crab Umbra by paying , untapping Trazyn
3. Repeat

Results

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