Force of Negation is a mythic Instant card from Avatar: The Last Airbender Eternal (TLE), collector number 13. Current market price: $45.17 (foil $64.71), TCGplayer market prices via Scryfall.
If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost. Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.