Index: scripts/globals/utils.lua
===================================================================
--- scripts/globals/utils.lua	(revision 3776)
+++ scripts/globals/utils.lua	(working copy)
@@ -151,6 +151,14 @@
     if(resist < 0.5) then
         resist = 0.5;
     end
+	
+	if(target:getObjType() == TYPE_PC) then
+		if((((dmg * resist) / target:getMaxHP()) * 100) > 50) then
+			if(target:getEquipID(SLOT_BACK) == 14646 and (math.random(100) <= 5)) then -- Archon Cape
+				dmg = 0;
+			end
+		end
+	end
 
     return dmg * resist;
 end;
Index: src/map/battleutils.cpp
===================================================================
--- src/map/battleutils.cpp	(revision 3776)
+++ src/map/battleutils.cpp	(working copy)
@@ -490,17 +490,31 @@
 	{
 		switch(PArmor->getID())
 		{
-			//shadow mantle 10% chance to annual damage
+			// Shadow Mantle 10% chance to annual damage
 			case 13658:
-				if (rand()%100 > 10) return originalDamage;
-				damage = 0;
+				if (rand()%100 > 10)
+				{
+					damage = 0;
+				}
 				break;
 
+			// Archon Cape 5% chance to annul "severe" physical damage
+			case 10975:
+				if ((ceil((float)(((float)damage / (float)PChar->GetMaxHP())) * 100)) > 50)
+				{
+					if (rand()%100 <= 5)
+					{
+					damage = 0;
+					}
+				}
+				break;
 
+
 			default:
-				return originalDamage;
+				break;
 		}
 	}
+
 	return damage;
 
 }