Cerebral Eruption is a rare Sorcery card from Scars of Mirrodin (SOM), collector number 86. Current market price: $0.29 (foil $0.74), TCGplayer market prices via Scryfall.
Target opponent reveals the top card of their library. Cerebral Eruption deals damage equal to the revealed card's mana value to that player and each creature that player controls. If a land card is revealed this way, return Cerebral Eruption to its owner's hand.