The Mystery Cave *RAGE*
You can kill the shadow imps with the same buff you use to light the fires.
You kill the imps while still standing in the circle of divine fire – a ranged weapon will do the trick if they’re not close by. Then go light the fire. It’s still a pain either way and the imps will respawn but it makes things easier.
Thank you both, will try again! <3
Sorry for the double-post, just letting you know I did it after learning that!
Thank you so much for helping out!