You should flip the texture on that ball vertically. That little yellow bit is meant to be an extension of the priest's staff. Overall the billboarded texture does not fit at all, and if you insist on using it I suggest you find a better one, such as some of the Gnoll ones. As Eagle already mentioned, an enchanted mace, similar or identical to the Gnoll Warden's could be ideal. I also seem to recall there was a spiked mace plane somewhere in the game but I can't remember where I saw it...