Benthic Biomancer + Shambling Shell + Thran Vigil

BGU identity

Commander legal

The 3 combo pieces

• Benthic Biomancer
• Shambling Shell
• Thran Vigil

How to execute it

1. Put a +1/+1 counter on Benthic Biomancer.
2. Benthic Biomancer triggers, causing you to mill three cards and return Shambling Shell from your graveyard to your hand, and then causing you to discard Shambling Shell.
3. Thran Vigil triggers, putting a +1/+1 counter on Benthic Biomancer.
4. Repeat from step 2.

What the combo produces

• Infinite self-mill