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
Arcane Adaptation,
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 creature ETB.
Infinite mana creatures you control can produce.
Infinite untap of creatures you control.
Metadata
Bracket tag
ExhibitionBracket 1+
For any deck
1
2
3
4
5
1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.