Whispered Cataclysm

You may cast this spell from your graveyard by paying {4}{u}{b}{b}, If you do, exile it.

Choose three —
• Counter target spell. Its controller mills cards equal to its mana value.
• Destroy target creature or planeswalker. Its controller discards a card.
• Target opponent reveals their hand. You choose a nonland card from it. That player discards that card, then mills three cards.
• Return a nonland permanent from any graveyard to the battlefield under your control.