diff --git a/Source/Aura/Private/AbilitySystem/AuraAttributeSet.cpp b/Source/Aura/Private/AbilitySystem/AuraAttributeSet.cpp
index e612208..a66d786 100644
--- a/Source/Aura/Private/AbilitySystem/AuraAttributeSet.cpp
+++ b/Source/Aura/Private/AbilitySystem/AuraAttributeSet.cpp
@@ -6,9 +6,9 @@
 
 UAuraAttributeSet::UAuraAttributeSet()
 {
-	InitHealth(100.f);
+	InitHealth(50.f);
 	InitMaxHealth(100.f);
-	InitMana(50.f);
+	InitMana(25.f);
 	InitMaxMana(50.f);
 }
 
diff --git a/Source/Aura/Private/UI/HUD/AuraHUD.cpp b/Source/Aura/Private/UI/HUD/AuraHUD.cpp
index 097547b..92b88c3 100644
--- a/Source/Aura/Private/UI/HUD/AuraHUD.cpp
+++ b/Source/Aura/Private/UI/HUD/AuraHUD.cpp
@@ -14,6 +14,7 @@ UOverlayWidgetController* AAuraHUD::GetOverlayWidgetController(const FWidgetCont
 	OverlayWidgetController = NewObject<UOverlayWidgetController>(this, OverlayWidgetControllerClass);
 	OverlayWidgetController->SetWidgetControllerParams(WCParams);
 
+	OverlayWidgetController->BindCallbacksToDependencies();
 	return OverlayWidgetController;
 }
 
diff --git a/Source/Aura/Private/UI/WidgetController/AuraWidgetController.cpp b/Source/Aura/Private/UI/WidgetController/AuraWidgetController.cpp
index 1e4bdf0..823e766 100644
--- a/Source/Aura/Private/UI/WidgetController/AuraWidgetController.cpp
+++ b/Source/Aura/Private/UI/WidgetController/AuraWidgetController.cpp
@@ -14,3 +14,7 @@ void UAuraWidgetController::SetWidgetControllerParams(const FWidgetControllerPar
 void UAuraWidgetController::BroadcastInitialValues()
 {
 }
+
+void UAuraWidgetController::BindCallbacksToDependencies()
+{
+}
diff --git a/Source/Aura/Private/UI/WidgetController/OverlayWidgetController.cpp b/Source/Aura/Private/UI/WidgetController/OverlayWidgetController.cpp
index b52e9f5..21b6b00 100644
--- a/Source/Aura/Private/UI/WidgetController/OverlayWidgetController.cpp
+++ b/Source/Aura/Private/UI/WidgetController/OverlayWidgetController.cpp
@@ -13,3 +13,40 @@ void UOverlayWidgetController::BroadcastInitialValues()
 	OnManaChanged.Broadcast(AuraAttributeSet->GetMana());
 	OnMaxManaChanged.Broadcast(AuraAttributeSet->GetMaxMana());
 }
+
+void UOverlayWidgetController::BindCallbacksToDependencies()
+{
+	const UAuraAttributeSet* AuraAttributeSet = CastChecked<UAuraAttributeSet>(AttributeSet);
+
+	AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate(
+		AuraAttributeSet->GetHealthAttribute()).AddUObject(this, &UOverlayWidgetController::HealthChanged);
+
+	AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate(
+		AuraAttributeSet->GetMaxHealthAttribute()).AddUObject(this, &UOverlayWidgetController::MaxHealthChanged);
+
+	AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate(
+		AuraAttributeSet->GetManaAttribute()).AddUObject(this, &UOverlayWidgetController::ManaChanged);
+
+	AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate(
+		AuraAttributeSet->GetMaxManaAttribute()).AddUObject(this, &UOverlayWidgetController::MaxManaChanged);
+}
+
+void UOverlayWidgetController::HealthChanged(const FOnAttributeChangeData& Data) const
+{
+	OnHealthChanged.Broadcast(Data.NewValue);
+}
+
+void UOverlayWidgetController::MaxHealthChanged(const FOnAttributeChangeData& Data) const
+{
+	OnMaxHealthChanged.Broadcast(Data.NewValue);
+}
+
+void UOverlayWidgetController::ManaChanged(const FOnAttributeChangeData& Data) const
+{
+	OnManaChanged.Broadcast(Data.NewValue);
+}
+
+void UOverlayWidgetController::MaxManaChanged(const FOnAttributeChangeData& Data) const
+{
+	OnMaxManaChanged.Broadcast(Data.NewValue);
+}
diff --git a/Source/Aura/Public/UI/WidgetController/AuraWidgetController.h b/Source/Aura/Public/UI/WidgetController/AuraWidgetController.h
index 3af5e67..ce7e99f 100644
--- a/Source/Aura/Public/UI/WidgetController/AuraWidgetController.h
+++ b/Source/Aura/Public/UI/WidgetController/AuraWidgetController.h
@@ -46,7 +46,7 @@ public:
 	void SetWidgetControllerParams(const FWidgetControllerParams& Params);
 
 	virtual void BroadcastInitialValues(); 
-
+	virtual void BindCallbacksToDependencies();
 protected:
 	UPROPERTY(BlueprintReadOnly, Category="WidgetController")
 	TObjectPtr<APlayerController> PlayerController;
diff --git a/Source/Aura/Public/UI/WidgetController/OverlayWidgetController.h b/Source/Aura/Public/UI/WidgetController/OverlayWidgetController.h
index 489ebbf..5dd117e 100644
--- a/Source/Aura/Public/UI/WidgetController/OverlayWidgetController.h
+++ b/Source/Aura/Public/UI/WidgetController/OverlayWidgetController.h
@@ -22,6 +22,7 @@ class AURA_API UOverlayWidgetController : public UAuraWidgetController
 
 public:
 	virtual void BroadcastInitialValues() override;
+	virtual void BindCallbacksToDependencies() override;
 
 	UPROPERTY(BlueprintAssignable, Category="GAS|Attributes")
 	FOnHealthChangedSignature OnHealthChanged;
@@ -34,4 +35,10 @@ public:
 
 	UPROPERTY(BlueprintAssignable, Category="GAS|Attributes")
 	FOnMaxManaChangedSignature OnMaxManaChanged;
+
+protected:
+	void HealthChanged(const FOnAttributeChangeData& Data) const;
+	void MaxHealthChanged(const FOnAttributeChangeData& Data) const;
+	void ManaChanged(const FOnAttributeChangeData& Data) const;
+	void MaxManaChanged(const FOnAttributeChangeData& Data) const;
 };