Steelbane Hydra is a rare Creature — Turtle Hydra card from Secrets of Strixhaven Commander (SOC), collector number 288. Current market price: $0.35, TCGplayer market prices via Scryfall.
This creature enters with X +1/+1 counters on it. {2}{G}, Remove a +1/+1 counter from this creature: Destroy target artifact or enchantment.