Index: sql/traits.sql
===================================================================
--- sql/traits.sql	(revision 3824)
+++ sql/traits.sql	(working copy)
@@ -279,4 +279,10 @@
 INSERT INTO `traits` VALUES ('94','fine-tuning','18','75','1','0','0');
 INSERT INTO `traits` VALUES ('95','optimization','18','75','1','0','0');
 INSERT INTO `traits` VALUES ('96','closed position','19','75','1','0','0');
-INSERT INTO `traits` VALUES ('97','stormsurge','20','75','1','0','0');
\ No newline at end of file
+INSERT INTO `traits` VALUES ('97','stormsurge','20','75','1','0','0');
+
+INSERT INTO `traits` VALUES ('13', 'conserve mp', '21', '10', '1', '296', '25');
+INSERT INTO `traits` VALUES ('13', 'conserve mp', '21', '30', '2', '296', '28');
+INSERT INTO `traits` VALUES ('13', 'conserve mp', '21', '50', '3', '296', '31');
+INSERT INTO `traits` VALUES ('13', 'conserve mp', '21', '70', '4', '296', '34');
+INSERT INTO `traits` VALUES ('13', 'conserve mp', '21', '90', '5', '296', '37');
\ No newline at end of file
Index: src/map/ai/ai_char_normal.cpp
===================================================================
--- src/map/ai/ai_char_normal.cpp	(revision 3824)
+++ src/map/ai/ai_char_normal.cpp	(working copy)
@@ -1457,7 +1457,16 @@
             {
 				if (!m_PChar->StatusEffectContainer->HasStatusEffect(EFFECT_MANAFONT))
 				{
-					m_PChar->addMP(-(int16)cost);
+					if(rand()%100 <= m_PChar->getMod(MOD_CONSERVE_MP))
+					{
+						// MP Cost = floor(Old MP Cost * N / 16) N random 8-15
+						m_PChar->addMP(-(floor((float)(((int16)cost * (float)(rand()%8 + 8)) / 16.0f))));
+						// ShowDebug(CL_CYAN"Conserve MP Proc \n");
+					}
+					else
+					{
+						m_PChar->addMP(-(int16)cost);
+					}
 				}
 			}
 		}