diff --git a/changelog.txt b/changelog.txt
index eb89606b9..c852b2096 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,5 +1,8 @@
 EQEMu Changelog (Started on Sept 24, 2003 15:50)
 -------------------------------------------------------
+== 09/16/2014 ==
+demonstar55: Implement spell formula 137 (BER AA Desperation)
+
 == 09/15/2014 ==
 Kayen: Nimbus effects will now be reapplied after zoning and will be removed when associated buff fades.
 
diff --git a/zone/spell_effects.cpp b/zone/spell_effects.cpp
index 008b83a54..3af80aacc 100644
--- a/zone/spell_effects.cpp
+++ b/zone/spell_effects.cpp
@@ -3166,6 +3166,10 @@ snare has both of them negative, yet their range should work the same:
 			result = MakeRandomInt(ubase, abs(max));
 			break;
 
+		case 137:	// used in berserker AA desperation
+			result = ubase - (ubase * (GetHPRatio() / 100.0f));
+			break;
+
 		//these are used in stacking effects... formula unknown
 		case 201:
 		case 203: