Deadly Cover-Up is a rare Sorcery card from Murders at Karlov Manor (MKM), collector number 83. Current market price: $0.52 (foil $0.70), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, you may collect evidence 6. Destroy all creatures. If evidence was collected, exile a card from an opponent's graveyard. Then search its owner's graveyard, hand, and library for any number of cards with that name and exile them. That player shuffles, then draws a card for each card exiled from their hand this way.