Crab Umbra + Omen Hawker + Zirda, the Dawnwaker

URW identity

Commander legal

The 3 combo pieces

• Crab Umbra
• Omen Hawker
• Zirda, the Dawnwaker

What must be in place

Omen Hawker does not have summoning sickness.

How to execute it

1. Activate Omen Hawker by tapping it, adding {C}{U} that can only be spent to activate abilities.
2. Activate Crab Umbra by paying {U}, untapping Omen Hawker.
3. Repeat.

What the combo produces

• Infinite colorless mana that can only be spent to activate abilities