Kotose, the Silent Spider [Kamigawa: Neon Dynasty Prerelease Promos]

When Kotose, the Silent Spider enters the battlefield, exile target card in an opponent’s graveyard other than a basic land card. Search that player’s graveyard, hand, and library for any number of cards with the same name as that card and exile. them. For as long as you control Kotose, you may play one of the exiled cards, and you may spend mana as though it were mana of any color to cast it.