Memory Deluge [Innistrad: Midnight Hunt Prerelease Promos]

Look at the top X cards of your library, where X is the amount of mana spent to cast this spell. Put two of them into your hand and the rest on the bottom of your library in a random order.

Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)