diff --git a/src/main/java/kamkeel/npcs/network/packets/player/ability/AbilityTogglePacket.java b/src/main/java/kamkeel/npcs/network/packets/player/ability/AbilityTogglePacket.java
index e42b8be88..199bd3e76 100644
--- a/src/main/java/kamkeel/npcs/network/packets/player/ability/AbilityTogglePacket.java
+++ b/src/main/java/kamkeel/npcs/network/packets/player/ability/AbilityTogglePacket.java
@@ -56,6 +56,9 @@ public final class AbilityTogglePacket extends AbstractPacket {
 
         int newState = playerData.abilityData.toggleAbility(key);
 
+        // Sync toggle states to client (toggle may have side effects like mutual exclusivity)
+        playerData.abilityData.syncToClient();
+
         String displayName = ability.getDisplayName();
         if (newState > 0) {
             String stateLabel = ability.getToggleStateLabel(newState);
diff --git a/src/main/java/noppes/npcs/client/gui/hud/ability/AbilityHotbarSlotRenderer.java b/src/main/java/noppes/npcs/client/gui/hud/ability/AbilityHotbarSlotRenderer.java
index 0f7917816..6f267d0e2 100644
--- a/src/main/java/noppes/npcs/client/gui/hud/ability/AbilityHotbarSlotRenderer.java
+++ b/src/main/java/noppes/npcs/client/gui/hud/ability/AbilityHotbarSlotRenderer.java
@@ -111,6 +111,17 @@ public class AbilityHotbarSlotRenderer extends Gui {
             drawCircle(radius, fillR, fillG, fillB, alpha * 0.8f, true);
         }
 
+        // Toggle active indicator: subtle green outline
+        int toggleState = getToggleState();
+        if (toggleState > 0) {
+            float glowAlpha = 0.45f * slotAlpha;
+            if (altTexture) {
+                drawRoundedRect(-radius, -radius, radius, radius, 0.2f, 0.85f, 0.3f, glowAlpha, true);
+            } else {
+                drawCircle(radius, 0.2f, 0.85f, 0.3f, glowAlpha, true);
+            }
+        }
+
         // Ability icon
         if (icon != null) {
             GL11.glPushMatrix();
@@ -119,7 +130,7 @@ public class AbilityHotbarSlotRenderer extends Gui {
             if (iconNaturalSize <= 0) iconNaturalSize = 16f;
             float iconScale = targetSize / iconNaturalSize;
             GL11.glScalef(iconScale, iconScale, 1);
-            icon.draw(getToggleState(), slotAlpha);
+            icon.draw(toggleState, slotAlpha);
             GL11.glColor4f(1, 1, 1, 1);
             GL11.glPopMatrix();
         }
diff --git a/src/main/java/noppes/npcs/client/gui/player/inventory/GuiAbilities.java b/src/main/java/noppes/npcs/client/gui/player/inventory/GuiAbilities.java
index 063e8f29c..b613a3911 100644
--- a/src/main/java/noppes/npcs/client/gui/player/inventory/GuiAbilities.java
+++ b/src/main/java/noppes/npcs/client/gui/player/inventory/GuiAbilities.java
@@ -399,6 +399,14 @@ public class GuiAbilities extends GuiCNPCInventory implements ISubGuiListener {
             boolean isDragSource = isDragging && dragSourceSlot == -1 && draggedKey != null
                 && draggedKey.equals(filteredKeys.get(absIndex));
 
+            // Compute toggle state early so border can reflect it
+            int cellToggleState = 0;
+            Ability cellAbility = filteredAbilities.get(absIndex);
+            PlayerData cellPlayerData = ClientCacheHandler.playerData;
+            if (cellAbility != null && cellAbility.isToggleable() && cellPlayerData != null && cellPlayerData.abilityData != null) {
+                cellToggleState = cellPlayerData.abilityData.getToggleState(filteredKeys.get(absIndex));
+            }
+
             // Cell background
             int bgColor;
             if (isDragSource) bgColor = 0x40333333;
@@ -409,7 +417,8 @@ public class GuiAbilities extends GuiCNPCInventory implements ISubGuiListener {
 
             // Cell border
             int borderColor;
-            if (isSelected) borderColor = 0xAA9999DD;
+            if (cellToggleState > 0) borderColor = 0x7733DD55;
+            else if (isSelected) borderColor = 0xAA9999DD;
             else if (isHovered) borderColor = 0xAA8888CC;
             else borderColor = 0x40404060;
             drawHorizontalLine(cellX, cellX + gridCellSize - 2, cellY, borderColor);
@@ -430,13 +439,6 @@ public class GuiAbilities extends GuiCNPCInventory implements ISubGuiListener {
                 int iconCenterX = cellX + (gridCellSize - 1) / 2;
                 int iconCenterY = cellY + (gridCellSize - 1) / 2;
 
-                int cellToggleState = 0;
-                Ability cellAbility = filteredAbilities.get(absIndex);
-                PlayerData cellPlayerData = ClientCacheHandler.playerData;
-                if (cellAbility != null && cellAbility.isToggleable() && cellPlayerData != null && cellPlayerData.abilityData != null) {
-                    cellToggleState = cellPlayerData.abilityData.getToggleState(filteredKeys.get(absIndex));
-                }
-
                 GL11.glPushMatrix();
                 GL11.glTranslatef(iconCenterX, iconCenterY, 0);
                 GL11.glScalef(iconScale, iconScale, 1);