Niv-Mizzet, Parun is a rare Legendary Creature — Dragon Wizard card from Ravnica Remastered (RVR), collector number 207. Current market price: $6.18 (foil $7.59), TCGplayer market prices via Scryfall.
This spell can't be countered. Flying Whenever you draw a card, Niv-Mizzet deals 1 damage to any target. Whenever a player casts an instant or sorcery spell, you draw a card.