Lim-Dûl's Vault

The closest thing to a tutor that never actually tutors: a library-sculptor that trades life as fuel for control over your next several draws without ever committing to a single card. The engine is the iteration loop. Each pass at the top five costs one life and lets you bury what you do not want, so the price of finding your answer scales with how deep you have to dig and how unlucky the first peeks are. Because you can repeat the process as many times as you choose, you can in practice dredge any specific card out of the deck, paying a life per five cards burrowed past until the piece you need surfaces in the window. The mandatory shuffle at the end is what keeps it honest: you do not stack the whole deck so much as fix the most recent five into your preferred order on top, then randomize everything beneath them. That distinction cuts in your favor, because it lets you set up a precise multi-turn draw sequence a one-shot tutor cannot, while the life cost prices the search honestly. Built at instant speed, it answers the question of what you draw next on the opponent's end step, after you know what the turn demanded. The card reads as fussy by modern standards (open-ended iteration and bottom-of-library ordering make it slow to resolve), but the underlying idea, life as a resource spent to convert randomness into information, is one the game has returned to repeatedly since.