Diabolic Revelation
Where most black tutors fetch one card and ask you to pick correctly, this one scales: spend more mana, draw out more of your deck into your hand in a single sorcery. That changes the kind of card it is. A Demonic Tutor or Vampiric Tutor is a precision instrument, a needle for the one answer or combo piece the situation demands. This is a closing bid, the tutor you cast when mana is no longer the constraint and you want to assemble an entire endgame at once: a combo's worth of pieces, every land you still need, both halves of a two-card kill. The cost is where the design draws its line. At small values it is a wildly inefficient single-card search, and the colored commitment only pays off once the late game has arrived and can climb to six, eight, or more. It also reshuffles afterward rather than putting cards on top, so it pairs with the slow, mana-rich decks that can stomach the full price and want their library shuffled rather than stacked. The job is not finesse. It is the moment a long game tips and one black sorcery converts a surplus of mana into a fistful of exactly the right cards.
