Scholar of the Lost Trove
Where reanimator asks you to cheat a creature into play, this Sphinx asks a different question: what is the best instant, sorcery, or artifact card sitting in your graveyard, and how badly do you want to cast it again for free? The trigger doesn't care how the card got there, which widens the target well past the usual playbook: a tucked-away Time Warp, a milled artifact bomb, a countered spell that hit the bin anyway. Because artifact is a legal target and artifact creatures are still artifacts, a recast Wurmcoil Engine or similar body arrives on the field and stays, giving you a permanent get-back that the exile clause can't touch. That clause is the honest half of the deal: instants and sorceries recast this way get exiled instead of returning to the graveyard, so you can't build a loop where one free spell endlessly refills itself; each replay is single and decisive. Wrapped around all of it is a 5/5 flier, a body that closes games on its own even when the graveyard has nothing worth raiding, so setup rewards you rather than gating you. The seven-mana cost is where the balance lives: by the time you can pay it, you've usually stocked a pile worth cashing, and the enters trigger converts that pile into a tempo swing plus an evasive threat in a single motion.

