Stupor

The two-card discard at sorcery speed is a rate black has always been able to lean on, but the cleverness sits in the ordering of the two clauses. The random discard resolves first, which is the whole trick: it strips a card before the opponent can shed their worst, so a card they were hoping to protect can vanish to chance. Only then does the second discard happen, chosen by them, after randomness has already thinned what they had to pick from. Against an empty or near-empty hand the spell goes limp, and that limit keeps it from being oppressive; it punishes the player sitting on cards rather than the one already hellbent. Routing the first pitch through randomness is the difference between this and a plain "discard two of your choice," which would hand the defender full agency to keep their best threat: the gamble denies them that certainty even when the second card is theirs to select. It sits in the lineage of black's hand-attack staples between the surgical (Duress, naming one card) and the broad-but-fair (Mind Rot, two at the defender's choice). This is the version that takes two and bets that one of them is the right one, accepting that it weakens the longer you wait to cast it. The cost is the line that holds it in check: two cards at that price at instant speed would have warped how black taxes a hand.