Crab Umbra + Wirewood Channeler

GU identity

Commander legal

The 2 combo pieces

• Crab Umbra
• Wirewood Channeler

What must be in place

There are at least four Elves on the battlefield.

How to execute it

1. Activate Wirewood Channeler by tapping it, adding at least {U}{U}{U}{U}.
2. Activate Crab Umbra by paying {2}{U}, untapping Wirewood Channeler.
3. Repeat.

What the combo produces

• Infinite colored mana