Fall of the Titans is a rare Instant card from Oath of the Gatewatch (OGW), collector number 109. Current market price: $0.30 (foil $0.53), TCGplayer market prices via Scryfall.
Surge {X}{R} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.) Fall of the Titans deals X damage to each of up to two targets.