Spellweaver Eternal is a common Creature — Zombie Snake Wizard card from Hour of Devastation (HOU), collector number 46. Current market price: $0.07 (foil $0.22), TCGplayer market prices via Scryfall.
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Afflict 2 (Whenever this creature becomes blocked, defending player loses 2 life.)