Mob and NPC Identity Update

db/re/mob_db.txt

@@ -3758,6 +3758,7 @@
 //20616,BONE_FERUS
 //20617,BONE_ACIDUS
 //20618,BONE_DETALE
+//20619,GLOOMUNDERNIGHT2
 
 //31999,HUNTING_GID_DEFAULT
 //32000,MONSTER_2ND_END