There are two +6 wis 1hb (mace) off undead in Kithicor.
https://wiki.project1999.com/Ruined_...n_Morning_Star
https://wiki.project1999.com/Tainted...n_Morning_Star
Be in Kith just a little bit forward of the WC zoneline. At 9pm an undead cleric will spawn right in front of the cabin and then start pathing deeper into Kith and back. Kill him and his respawns until you get the tainted battleworn Star.