Sheogorath, Prince of Madness

Cheese! Wondarful!— {t}, Sacrifice Sheogorath,
Price of Madness. Choose one:
•Flip a coin. Heads: Your opponent discards the
top five cards of their library. Tails: You discard
the top five cards of your library.
• Scry 1. If the card was green: Target creature
gets +X/+X, where X is Nostalgia tokens it has.
If black: Choose a permanent in your graveyard
and put it in your hand. If both: Choose one.
You lose 3 life.