Chromatic Orrery + Trazyn the Infinite + Umbral Mantle

B identity

Commander legal

The 3 combo pieces

• Chromatic Orrery
• Trazyn the Infinite
• Umbral Mantle

How to execute it

1. Activate Trazyn using Chromatic Orrery's ability by tapping it, adding {C}{C}{C}{C}{C}.
2. Activate Trazyn by paying {3} and untapping it, giving it +2/+2 until end of turn.
3. Repeat.

What the combo produces

• Infinite card draw
• Infinite colored mana
• Infinite colorless mana
• Infinite draw triggers
• Infinite untap of creatures you control
• Infinitely large creature until end of turn