Kiora, the Rising Tide is a rare Legendary Creature — Merfolk Noble card from Foundations (FDN), collector number 377. Current market price: — (foil $19.13), TCGplayer market prices via Scryfall.
When Kiora enters, draw two cards, then discard two cards. Threshold — Whenever Kiora attacks, if there are seven or more cards in your graveyard, you may create Scion of the Deep, a legendary 8/8 blue Octopus creature token.