Seal of Fire is a common Enchantment card from Duel Decks Anthology: Jace vs. Chandra (JVC), collector number 50. Current market price: $0.83, TCGplayer market prices via Scryfall.
Sacrifice this enchantment: It deals 2 damage to any target.
All Duel Decks Anthology: Jace vs. Chandra cards and prices