Mind Shatter
The "at random" clause is where the whole design lives. Black has paid mana to strip an opponent's hand since the earliest sets, and a scaling X-discard effect was already familiar territory by the time this arrived. What separates it from the targeted-discard tradition, where the caster reads the hand and surgically removes the threat, is that it surrenders all of that control. You pay X to delete that many cards, but you have no say over which ones leave. The double-black on top of the X anchors it in heavy black decks rather than splash territory, and as an X-spell it scales with your mana: it is a late-game payoff, not a turn-one play. That late-game timing creates the real tension. The effect is strongest when the opponent has held cards (more grip means more for the random selection to bite into), but the natural window for casting it big is exactly when an opponent has spent down their hand, so the discard hits a thinner target than the rate promises. Randomness trades the precision of a Thoughtseize for the brute scale of emptying a hand several cards at once: a sledgehammer in a category that usually prefers scalpels. The lack of selection is precisely what keeps a multi-card discard spell from being oppressive; with surgical choice, a four- or five-card random rip would read very differently.
