diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index 6224638309..ec604ebc62 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -420,6 +420,7 @@ gBattleScriptsForMoveEffects::
 	.4byte BattleScript_EffectShellTrap               @ EFFECT_SHELL_TRAP
 	.4byte BattleScript_EffectDireClaw                @ EFFECT_DIRE_CLAW
 	.4byte BattleScript_EffectStoneAxe                @ EFFECT_STONE_AXE
+	.4byte BattleScript_EffectBarbBarrage             @ EFFECT_BARB_BARRAGE
 
 BattleScript_EffectStoneAxe::
 	call BattleScript_EffectHit_Ret
@@ -3265,6 +3266,7 @@ BattleScript_CantMakeAsleep::
 	orhalfword gMoveResultFlags, MOVE_RESULT_FAILED
 	goto BattleScript_MoveEnd
 
+BattleScript_EffectBarbBarrage:
 BattleScript_EffectPoisonHit:
 	setmoveeffect MOVE_EFFECT_POISON
 	goto BattleScript_EffectHit
diff --git a/include/constants/battle_move_effects.h b/include/constants/battle_move_effects.h
index 16aac52843..f51ae08c18 100644
--- a/include/constants/battle_move_effects.h
+++ b/include/constants/battle_move_effects.h
@@ -401,7 +401,8 @@
 #define EFFECT_SHELL_TRAP                   395
 #define EFFECT_DIRE_CLAW                    396
 #define EFFECT_STONE_AXE                    397
+#define EFFECT_BARB_BARRAGE                 398
 
-#define NUM_BATTLE_MOVE_EFFECTS             398
+#define NUM_BATTLE_MOVE_EFFECTS             399
 
 #endif  // GUARD_CONSTANTS_BATTLE_MOVE_EFFECTS_H
diff --git a/src/battle_util.c b/src/battle_util.c
index 00e3b869b1..08eea7f41d 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -8483,6 +8483,10 @@ static u16 CalcMoveBasePower(u16 move, u8 battlerAtk, u8 battlerDef)
         basePower = CalcBeatUpPower();
         #endif
         break;
+    case EFFECT_BARB_BARRAGE:
+        if (gBattleMons[battlerDef].status1 & STATUS1_PSN_ANY)
+            basePower *= 2;
+        break;
     }
 
     // Move-specific base power changes
diff --git a/src/data/battle_moves.h b/src/data/battle_moves.h
index 22b695fc43..227f77daf8 100644
--- a/src/data/battle_moves.h
+++ b/src/data/battle_moves.h
@@ -13490,12 +13490,16 @@ const struct BattleMove gBattleMoves[MOVES_COUNT_Z] =
 
     [MOVE_BARB_BARRAGE] =
     {
-        .effect = EFFECT_PLACEHOLDER, // EFFECT_BARB_BARRAGE,
+        .effect = EFFECT_BARB_BARRAGE,
         .power = 60,
         .type = TYPE_POISON,
         .accuracy = 100,
-        .pp = 15,
-        .secondaryEffectChance = 0,
+        #if B_UPDATED_MOVE_DATA >= GEN_9
+            .pp = 10,
+        #else
+            .pp = 15,
+        #endif
+        .secondaryEffectChance = 50,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
         .flags = FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED | FLAG_SHEER_FORCE_BOOST,