Volcano Hellion is a rare Creature — Hellion card from Planar Chaos (PLC), collector number 111. Current market price: $1.15 (foil $22.35), TCGplayer market prices via Scryfall.
This creature has echo {X}, where X is your life total. (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) When this creature enters, it deals an amount of damage of your choice to you and target creature. The damage can't be prevented.