Mindslicer

The threat lives in the death trigger, which inverts how black usually weaponizes discard. Most hand-attack cards (Thoughtseize, Hymn to Tourach, Mind Twist) cost the controller resources to strip an opponent. Here the disruption is delayed and mutual, sitting dormant on a 4/3 body until the creature dies, and then it empties every hand at once, including yours. Untangling that mutual clause is the entire puzzle: the card only rewards the player who can sequence around the wipe. Hold a creature back to deploy after it dies, or commit your hand first and bait removal, and the two-sided effect becomes a one-sided lock that strands the opponent in topdeck mode while you have already cashed in. It favors a board state where you are ahead on resources and want to slam the door, not a draw-go grind where both players are equally starved. The trigger also fires on a sacrifice, which converts it into a delivery mechanism: pair it with an outlet and you choose the timing of the wipe rather than waiting on combat or removal to set it off. Black has rarely been handed a tool this blunt for forcing the game into a hellbent state on demand, and what makes it worth building around is the question of who controls the moment it goes off.