diff --git a/include/constants/battle_script_commands.h b/include/constants/battle_script_commands.h
index ee98bccec7..ea74a4d1e9 100644
--- a/include/constants/battle_script_commands.h
+++ b/include/constants/battle_script_commands.h
@@ -302,16 +302,16 @@
 #define MOVEEND_ATTACKER_VISIBLE                  10
 #define MOVEEND_TARGET_VISIBLE                    11
 #define MOVEEND_ITEM_EFFECTS_TARGET               12
-#define MOVEEND_ITEM_EFFECTS_ALL                  13
-#define MOVEEND_KINGSROCK                         14    // These item effects will occur each strike of a multi-hit move
-#define MOVEEND_SUBSTITUTE                        15
-#define MOVEEND_SKY_DROP_CONFUSE                  16
-#define MOVEEND_UPDATE_LAST_MOVES                 17
-#define MOVEEND_MIRROR_MOVE                       18
-#define MOVEEND_NEXT_TARGET                       19   // Everything up until here is handled for each strike of a multi-hit move
-#define MOVEEND_MULTIHIT_MOVE                     20
-#define MOVEEND_DEFROST                           21
-#define MOVEEND_MOVE_EFFECTS2                     22
+#define MOVEEND_MOVE_EFFECTS2                     13
+#define MOVEEND_ITEM_EFFECTS_ALL                  14
+#define MOVEEND_KINGSROCK                         15    // These item effects will occur each strike of a multi-hit move
+#define MOVEEND_SUBSTITUTE                        16
+#define MOVEEND_SKY_DROP_CONFUSE                  17
+#define MOVEEND_UPDATE_LAST_MOVES                 18
+#define MOVEEND_MIRROR_MOVE                       19
+#define MOVEEND_NEXT_TARGET                       20   // Everything up until here is handled for each strike of a multi-hit move
+#define MOVEEND_MULTIHIT_MOVE                     21
+#define MOVEEND_DEFROST                           22
 #define MOVEEND_RECOIL                            23
 #define MOVEEND_MAGICIAN                          24    // Occurs after final multi-hit strike, and after other items/abilities would activate
 #define MOVEEND_EJECT_BUTTON                      25
diff --git a/test/battle/move_effect/knock_off.c b/test/battle/move_effect/knock_off.c
new file mode 100644
index 0000000000..3022a19633
--- /dev/null
+++ b/test/battle/move_effect/knock_off.c
@@ -0,0 +1,53 @@
+#include "global.h"
+#include "test/battle.h"
+
+ASSUMPTIONS
+{
+    ASSUME(gBattleMoves[MOVE_KNOCK_OFF].effect == EFFECT_KNOCK_OFF);
+}
+
+SINGLE_BATTLE_TEST("Knock Off knocks a healing berry before it has the chance to activate")
+{
+    GIVEN {
+        PLAYER(SPECIES_WOBBUFFET);
+        OPPONENT(SPECIES_WOBBUFFET) { Item(ITEM_SITRUS_BERRY); MaxHP(500); HP(255); }
+    } WHEN {
+        TURN { MOVE(player, MOVE_KNOCK_OFF); }
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_KNOCK_OFF, player);
+        NONE_OF {
+            ANIMATION(ANIM_TYPE_GENERAL, B_ANIM_HELD_ITEM_EFFECT, opponent);
+            MESSAGE("Foe Wobbuffet's Sitrus Berry restored health!");
+        }
+        ANIMATION(ANIM_TYPE_GENERAL, B_ANIM_ITEM_KNOCKOFF);
+        MESSAGE("Wobbuffet knocked off Foe Wobbuffet's Sitrus Berry!");
+    }
+}
+
+SINGLE_BATTLE_TEST("Knock Off activates after Rocky Helmet and Weakness Policy")
+{
+    u16 item = 0;
+
+    PARAMETRIZE { item = ITEM_WEAKNESS_POLICY; }
+    PARAMETRIZE { item = ITEM_ROCKY_HELMET; }
+
+    GIVEN {
+        PLAYER(SPECIES_WOBBUFFET);
+        OPPONENT(SPECIES_WOBBUFFET) { Item(item); }
+    } WHEN {
+        TURN { MOVE(player, MOVE_KNOCK_OFF); }
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_KNOCK_OFF, player);
+        ANIMATION(ANIM_TYPE_GENERAL, B_ANIM_HELD_ITEM_EFFECT, opponent);
+        if (item == ITEM_WEAKNESS_POLICY) {
+            ANIMATION(ANIM_TYPE_GENERAL, B_ANIM_STATS_CHANGE);
+            MESSAGE("Using WeaknssPolicy, the Attack of Foe Wobbuffet sharply rose!");
+            MESSAGE("Using WeaknssPolicy, the Sp. Atk of Foe Wobbuffet sharply rose!");
+        } else if (item == ITEM_ROCKY_HELMET) {
+            HP_BAR(player);
+            MESSAGE("Wobbuffet was hurt by Foe Wobbuffet's Rocky Helmet!");
+            ANIMATION(ANIM_TYPE_GENERAL, B_ANIM_ITEM_KNOCKOFF);
+            MESSAGE("Wobbuffet knocked off Foe Wobbuffet's Rocky Helmet!");
+        }
+    }
+}