Intruder Alarm + Marrow-Gnawer

UB identity

Commander legal

The 2 combo pieces

What must be in place

You control at least two additional Rats.

How to execute it

  1. Activate Marrow-Gnawer by tapping it and sacrificing another Rat, creating at least two 1/1 Rat tokens.
  2. Intruder Alarm triggers once for each creature token created, untapping all creatures that many times.
  3. Repeat.

What the combo produces