diff --git a/zone/bonuses.cpp b/zone/bonuses.cpp
index 9072a2c9b..a316c4b3b 100644
--- a/zone/bonuses.cpp
+++ b/zone/bonuses.cpp
@@ -2762,19 +2762,23 @@ void Mob::ApplySpellsBonuses(uint16 spell_id, uint8 casterlevel, StatBonuses* ne
 				break;
 
 			case SE_AStacker:
-				newbon->AStacker = true;
+				newbon->AStacker[0] = 1;
+				newbon->AStacker[1] = effect_value;
 				break;
 
 			case SE_BStacker:
-				newbon->BStacker = true;
+				newbon->BStacker[0] = 1;
+				newbon->BStacker[1] = effect_value;
 				break;
 
 			case SE_CStacker:
-				newbon->CStacker = true;
+				newbon->CStacker[0] = 1;
+				newbon->CStacker[1] = effect_value;
 				break;
 
 			case SE_DStacker:
-				newbon->DStacker = true;
+				newbon->DStacker[0] = 1;
+				newbon->DStacker[1] = effect_value;
 				break;
 
 			case SE_Berserk:
diff --git a/zone/common.h b/zone/common.h
index d9b0d53d3..88600492e 100644
--- a/zone/common.h
+++ b/zone/common.h
@@ -366,10 +366,10 @@ struct StatBonuses {
 	bool	NegateIfCombat;						// Bool Drop buff if cast or melee
 	int8	Screech;							// -1 = Will be blocked if another Screech is +(1)
 	int16	AlterNPCLevel;						// amount of lvls +/-
-	bool	AStacker;							// For buff stack blocking
-	bool	BStacker;							// For buff stack blocking
-	bool	CStacker;							// For buff stack blocking
-	bool	DStacker;							// For buff stack blocking
+	int16	AStacker[1];						// For buff stack blocking 0=Exists 1=Effect_value 
+	int16	BStacker[1];						// For buff stack blocking 0=Exists 1=Effect_value
+	int16	CStacker[1];						// For buff stack blocking 0=Exists 1=Effect_value
+	int16	DStacker[1];						// For buff stack blocking 0=Exists 1=Effect_value
 	bool	BerserkSPA;							// berserk effect
 	int16	Metabolism;							// Food/drink consumption rates.
 
diff --git a/zone/spells.cpp b/zone/spells.cpp
index 78dce3379..59dbb6625 100644
--- a/zone/spells.cpp
+++ b/zone/spells.cpp
@@ -2622,19 +2622,31 @@ int Mob::CheckStackConflict(uint16 spellid1, int caster_level1, uint16 spellid2,
 			}
 
 			/*Buff stacking prevention spell effects (446 - 449) works as follows... If B prevent A, if C prevent B, if D prevent C.
+			If checking same type ie A vs A, which ever effect base value is higher will take hold.
 			Special check is added to make sure the buffs stack properly when applied from fade on duration effect, since the buff
 			is not fully removed at the time of the trgger*/
-			if (spellbonuses.BStacker) {
+			if (spellbonuses.AStacker[0]) {
+				if ((effect2 == SE_AStacker) && (sp2.effectid[i] <= spellbonuses.AStacker[1]))
+					return -1;
+			}
+
+			if (spellbonuses.BStacker[0]) {
+				if ((effect2 == SE_BStacker) && (sp2.effectid[i] <= spellbonuses.BStacker[1]))
+					return -1;
 				if ((effect2 == SE_AStacker) && (!IsCastonFadeDurationSpell(spellid1) && buffs[buffslot].ticsremaining != 1 && IsEffectInSpell(spellid1, SE_BStacker)))
 					return -1;
 			}
 
-			if (spellbonuses.CStacker) {
+			if (spellbonuses.CStacker[0]) {
+				if ((effect2 == SE_CStacker) && (sp2.effectid[i] <= spellbonuses.CStacker[1]))
+					return -1;
 				if ((effect2 == SE_BStacker) && (!IsCastonFadeDurationSpell(spellid1) && buffs[buffslot].ticsremaining != 1 && IsEffectInSpell(spellid1, SE_CStacker)))
 					return -1;
 			}
 						
-			if (spellbonuses.DStacker) {
+			if (spellbonuses.DStacker[0]) {
+				if ((effect2 == SE_DStacker) && (sp2.effectid[i] <= spellbonuses.DStacker[1]))
+					return -1;
 				if ((effect2 == SE_CStacker) && (!IsCastonFadeDurationSpell(spellid1) && buffs[buffslot].ticsremaining != 1 && IsEffectInSpell(spellid1, SE_DStacker)))
 					return -1;
 			}