King Crimson, Requiem

: Opponents must play with their hands revealed. During your upkeep, proliferate X, where X is the number of nonland permanents revealed this way.
-5: Up to three target creatures cannot be blocked this turn. Up to three target instants or sorceries cannot be countered this turn.
-15: Each opponent reveals the top 5 cards of their library, then skips their next turn.