How can you create a combo with Marrow-Gnawer, Intruder Alarm?
user
[START OF COMBO]This combo can be formed with Marrow-Gnawer, Intruder Alarm

Color identity: UB
Mana cost: 
Steps:
  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.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens
  - Infinite mana creatures you control can produce
  - Infinite untap of all creatures[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least two additional Rats.
[END OF COMBO PREREQUISITES]
assistant