Urza's Rage is a rare Instant card from Strixhaven Mystical Archive (STA), collector number 47. Current market price: $0.32 (foil $0.49), TCGplayer market prices via Scryfall.
Kicker {8}{R} (You may pay an additional {8}{R} as you cast this spell.) This spell can't be countered. Urza's Rage deals 3 damage to any target. If this spell was kicked, instead it deals 10 damage to that permanent or player and the damage can't be prevented.