Valley Floodcaller is a rare Creature — Otter Wizard card from Bloomburrow Promos (PBLB), collector number 79p. Current market price: $6.61 (foil $8.40), TCGplayer market prices via Scryfall.
Flash You may cast noncreature spells as though they had flash. Whenever you cast a noncreature spell, Birds, Frogs, Otters, and Rats you control get +1/+1 until end of turn. Untap them.