Regis the Reverent
 

Seems in NK, close to 1214, -1579, 18, Regis the Reverent is spawning 5 times upon himself. This makes him stick in the same spot and not move. Just to check I nuked it, and all 5 began to run after me

This is the way it always was. His spawn is triggered by the killing of Zahal the Vile on a 1:1 ratio,and since Zahal roams around and attacks people, he gets killed more often than Regis does. The first time I did the quest on live, my little cleric got cratered by about 10 Regises.

Hmm, I smell quad kiting target.

Leaving this open for more debate. You sure it happened like that on live, and for how long you think? If not we can fix it here.

It always happened like that for as long as I've been aware of the quest. It isn't a good xp gimmick since Zahal's spawntimer is around 4-6 hours. I've absolutely no concrete proof of this other than my very likely imperfect memory of the way it was.

I can confirm it happened like this as well. Did that cleric bracer quest repeatedly back in the day.

To my knowledge it was never fixed, because the quest dialog specifically links Zahal and Regis together... from allakhazam's:

Speak with a Gypsy named Lianna Ferasa in the Rathe Mts. Ask her what has become of Regis the Reverent and she will tell you that he was killed in the N Karanas by an evil man named Zahal the Vile. She says if you go kill Zahal the Vile, Regis' body will rise from the dead where he was killed along the NE tree line of the zone. She also asks that if he has her flute on his body to bring it to her.

Used to do it myself to sell the bracers. Way back when, Regis would spawn (forced spawn) in between the trees like he does now approx 2 min or so after Zahal the Vile was taken down. He does not roam. Only after Regis was taken down could Zahal spawn again (do not know of his spawn rate), forcing another Regis to pop. Years and years ago there were not multiple copies of Regis standing there.

Bump.

There's currently 5 or 6 (or more) of him all stacked up at his spawn point.
That was a not so fun surprise to say the least.

Is there any sort of way to limit the upper end of how many Regis's there can be?

Yes. This was left open because of conflicting opinions.

Had an extra up on live once. Typically it was the case if Zahal was up, the other was down, and vice versa.