Sweet Oblivion

Escape turns a self-mill spell into its own fuel, and this is one of the tidiest expressions of that loop. The front half fills a graveyard four cards at a time; the escape cost then exiles four other cards from that same graveyard to buy the spell back. The arithmetic is the point: aim the mill at yourself and each recast puts four cards into your yard while the escape cost removes four others, so the graveyard breaks even and the spell reloads its own next escape perfectly. That parity makes it a recurring engine piece for any strategy that wants a graveyard stocked and a spell it can keep replaying, whether the mill feeds reanimator and delve payoffs at home or works as a slow clock aimed across the table. The tension escape resolves for a card like this is that a pure mill spell is a one-shot: it does its job once and then sits inert in the yard with nothing left to give. The exile clause hands it a second, third, and fourth cast, each paid for out of the pile it just refilled. It asks you to want a full graveyard for reasons beyond the spell itself, then rewards that want by staying castable from the yard as long as there are four spare cards to feed it.