Thoughtpicker Witch

Top-of-library disruption that hands the choice to the disrupting player is rare, and this is an early version that treats deck disruption as a scalpel rather than a hammer. Where most graveyard-attack effects of the time stripped cards off the top at random and hoped the right one fell, the sacrifice-fueled activation here lets you see two and pick which one the opponent never draws, exiling it rather than binning it so reanimation and recursion recover nothing. That choice is the entire appeal: against a combo deck you take the missing piece, against a controlling one you take the answer, and the exile clause shuts the door behind it. The cost is what grounds the engine. Each activation eats both a mana and a body, and the body cannot be a permanent fixture: with no other creatures to feed it, the only thing left to sacrifice is the Witch itself, which ends the engine after a single use. The ability has no tap requirement and no once-per-turn clause, so given a steady supply of expendable creatures, you can fire it as many times as you can pay for in a turn, surgically peeling the top off a library one targeted card at a time. That dependence on fodder is the design wager: alone it is a fragile 1/1 with a one-shot disruption, but wired into a shell that was already producing sacrifice material, it becomes repeatable, precise, and far meaner than the random mass-mill that dominated the era.