Stormcatch Mentor is a uncommon Creature — Otter Wizard card from Secrets of Strixhaven Commander (SOC), collector number 331. Current market price: $0.33, TCGplayer market prices via Scryfall.
Haste Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Instant and sorcery spells you cast cost {1} less to cast.