Dollhouse of Horrors

The graveyard is the raw material here, but the token you get back is never the creature you exiled: it comes into play as a 0/0 Construct whose size scales with how many Constructs you control, counting itself, so even alone it's a 1/1. That's the wrinkle worth sitting with. A copy effect that normally hands you a full-bodied reprint instead scales its own output, so the card wants you to have built a Construct board before you ever activate it, at which point each new token is both a beneficiary of the count and another point of anthem for the next one. It reads like a reanimation engine and behaves like an artifact go-wide payoff, and the two identities pull against each other: the best creature cards to exile are often the ones whose stats matter least, because you're paying for the printed keywords and triggers, not the printed power. The repeatable activation, gated to sorcery speed and to one exile per use, turns the graveyard into a slow-burning toolbox rather than a burst. What makes it more than a value trinket is that friction between the source (a specific dead creature) and the product (a generic Construct whose size you have to manufacture), which forces a deckbuilding answer most copy effects never ask for: not just what to copy, but how many artifacts you can stand next to when you do.