Better still get rid of it altogether. Its terrible for other players when there's a group running it. A lone monk or a monk with a partner isn't a problem, but its when the big group that runs is about the only to do is log off.

Its OK when there's just the couple, but there's a group of 10 that runs it where I hunt and its awful.

I imagine, that with the spell the way it is now, you're probably seeing a greater increase from the amount of characters hunting in the area, than you are from any or all of them using Provoke to try and increase the gen rate.

The increase in critter population when Provoke is cast by that group is insane. It generates area wide messaging when its cast and suddenly theres three critters in every room. Its a huge difference between when they are there and not running it, and when they put it up. There's a lot when they are there but they also kill them fast so it doesn't get out of hand, but Provoke fills it faster than they can kill them.

It probably should have a fixed effect rather than a multiplicative one. Then you'd see a difference using it solo and it wouldn't overwhelm everyone else in the area when used by an MA group. e.g. make the caster count like 3 characters for spawn purposes rather than making everyone in the area count double.