Horseshoe Crab + Kami of Whispered Hopes + Marvin, Murderous Mimic

GU identity

Commander legal

The 3 combo pieces

What must be in place

Marvin does not have summoning sickness.

How to execute it

  1. Activate Marvin using Kami of Whispered Hopes's ability by tapping it, adding at least {U}{U}.
  2. Activate Marvin using Horseshoe Crab's ability by paying {U}, untapping it.
  3. Repeat.

What the combo produces