Rosewater Cites Fifth Dawn’s Stations as an Earlier Infinite Loop

On November 1, Mark Rosewater answered a question about earlier designed loops by saying R&D had done so before the Uncommon Fantastic Four members in MSH: “Yes, the four Stations in Fifth Dawn created an infinite loop if you got them all on the battlefield together.” He named Blasting Station, Grinding Station, Salvaging Station and Summoning Station. The four Stations alone are not the full setup: the documented loop also needs a noncreature artifact card with mana value 1 or less in your graveyard.

The documented Stations combo returns that artifact with Salvaging Station, sacrifices it to Grinding Station, then uses Summoning Station to make a Pincher token. Sacrificing the Pincher to Blasting Station completes the cycle. Each repetition mills three cards and deals 1 damage. Rosewater offered Fifth Dawn’s Stations as a precedent for the Fantastic Four interaction in the question, but did not explain how that later loop works or compare the designs in detail.