Crab Umbra + Doc Samson, Super Psychiatrist
GU identity
Commander legal
The 2 combo pieces
How to execute it
- Activate Doc Samson by tapping it, adding at least {U}{U}{U}{U}
- Activate Crab Umbra by paying {2}{U}, untapping Doc Samson.
- Repeat.
What the combo produces
- Infinite colored mana