Counter target noncreature spell unless its controller pays {2}.
"One does not need to be stronger than their opponent. You need only force them to play their hand before you've shown your own." —Forces of Negation: A Study in Countermagic
Reveal the top card of your library and put that card into your hand. You lose life equal to its mana value. You may repeat this process any number of times.
"Some areas are off limits for the preservation of the books. Others for the preservation of the students." —Isabough, Biblioplex archivist
Suspend 3—{2}{B}{B} Each player exiles all creature cards from their graveyard, then sacrifices all creatures they control, then puts all cards they exiled this way onto the battlefield.
"Mortality is a gift. There is a comfort in knowing that the end is coming." —Vess's Cautions in Necromancy
Choose one — • Each opponent sacrifices a nontoken creature of their choice. • Each opponent sacrifices a creature token of their choice. • Each opponent sacrifices a planeswalker of their choice.
Choose one. If you control a commander as you cast this spell, you may choose both instead. • Add {R} for each card in target opponent's hand. • Exile the top three cards of your library. You may play them this turn.