Shred Memory is a common Instant card from Ravnica: City of Guilds (RAV), collector number 105. Current market price: $0.84 (foil $8.03), TCGplayer market prices via Scryfall.
Exile up to four target cards from a single graveyard. Transmute {1}{B}{B} ({1}{B}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)