Donatello, the Brains + Summoning Station + Arcbound Ravager

Donatello, the Brains

Summoning Station

Arcbound Ravager

How it works

1. Activate Summoning Station by tapping it, creating a 2/2 Pincher creature token and a Mutagen token due to Donatello.
2. Activate Arcbound Ravager by sacrificing the Mutagen.
3. Summoning Station triggers, untapping itself.
4. Resolve the Arcbound Ravager ability.
5. Repeat.

This loop turns Summoning Station into a self-sustaining token engine by leveraging Donatello, the Brains' replacement effect to double up on every activation with an extra Mutagen token. Once you tap Summoning Station for its initial Pincher, Donatello ensures a Mutagen tags along for the ride. You then feed that extra artifact right into Arcbound Ravager's sacrifice ability, growing the Ravager and instantly satisfying Summoning Station's graveyard trigger to untap it for the next iteration.