diff --git a/src/naxx40Scripts/boss_four_horsemen_40.cpp b/src/naxx40Scripts/boss_four_horsemen_40.cpp
index 09db2d2..20717e7 100644
--- a/src/naxx40Scripts/boss_four_horsemen_40.cpp
+++ b/src/naxx40Scripts/boss_four_horsemen_40.cpp
@@ -470,15 +470,42 @@ class spell_four_horsemen_consumption : public SpellScript
 {
     PrepareSpellScript(spell_four_horsemen_consumption);
 
-    void HandleDamageCalc(SpellEffIndex /*effIndex*/)
+    void CalculateDamage(SpellEffIndex /*effIndex*/)
     {
-        uint32 damage = GetCaster()->GetMap()->ToInstanceMap()->GetDifficulty() == REGULAR_DIFFICULTY ? 2750 : 4250;
-        SetHitDamage(damage);
+        Map* map = GetCaster()->GetMap();
+        if (!map)
+        {
+            return;
+        }
+        int32 value = 0;
+        if (map->GetDifficulty() == RAID_DIFFICULTY_25MAN_NORMAL) // NAXX25 N
+        {
+            value = urand(4500, 4700);
+        }
+        else if (map->GetId() == 533) // NAXX10 N
+        {
+            if (map->GetDifficulty() == RAID_DIFFICULTY_10MAN_NORMAL)
+            {
+                value = urand(3000, 3200);
+            }
+            else
+            {
+                value = urand(3960, 4840); // NAXX40
+            }
+        }
+        else if (map->GetId() == 532) // Karazhan
+        {
+            value = urand(1110, 1310);
+        }
+        if (value)
+        {
+            SetEffectValue(value);
+        }
     }
 
     void Register() override
     {
-        OnEffectHitTarget += SpellEffectFn(spell_four_horsemen_consumption::HandleDamageCalc, EFFECT_0, SPELL_EFFECT_SCHOOL_DAMAGE);
+        OnEffectLaunchTarget += SpellEffectFn(spell_four_horsemen_consumption::CalculateDamage, EFFECT_0, SPELL_EFFECT_SCHOOL_DAMAGE);
     }
 };
 
@@ -486,5 +513,5 @@ void AddSC_boss_four_horsemen_40()
 {
     new boss_four_horsemen_40();
     new spell_four_horsemen_mark();
-//    RegisterSpellScript(spell_four_horsemen_consumption);
+    RegisterSpellScript(spell_four_horsemen_consumption);
 }