Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
- Marrow-Gnawer does not have summoning sickness.
- "Pirate" chosen with Xenograft.
- You control at least one additional Rat.
Steps
- Activate Marrow-Gnawer by tapping it and sacrificing another Rat, creating at least one 1/1 Rat creature token.
- When the Rat enters the battlefield as a Pirate due to Xenograft, Coercive Recruiter triggers, untapping Marrow-Gnawer.
- Repeat.
- If you control at least two other Rats, this combo creates infinite additional Coercive Recruiter triggers, which can be used to untap any creature(s) infinitely and/or to gain control of any number of creature(s) until end of turn.
Results
- Gain control of all creatures until end of turn.
- Infinite creature tokens.
- Infinite ETB.
- Infinite mana creatures you control can produce.
- Infinite untap of creatures you control.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).