Chromatic Orrery + Crab Umbra + Trazyn the Infinite

UB identity

Commander legal

The 3 combo pieces

• Chromatic Orrery
• Crab Umbra
• Trazyn the Infinite

How to execute it

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

What the combo produces

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