Barb Barrage is a Poison-type move with 60 power and 100% accuracy, introduced in Pokémon Legends: Arceus. This move has additional effects based on the opponent's status condition. If the target is already poisoned, Barb Barrage's power doubles to 120. Additionally, it has a 30% chance to poison the target if they aren't already poisoned. The move also lowers the target's Defense stat by one stage if the attack successfully poisons the target. Barb Barrage is unique to Hisuian Qwilfish and Overqwil, adding a strategic layer for these Pokémon within battle scenarios.