Something really messed up happened while I was fishing: suddenly (several feet away, Tir lake) dozens of treasure chest/mimics appeared, along with hordes of Stone Imps and Stone Hounds. I killed most of them with Thunder and normal attacks, gaining a load of prof and exp in the process, as well as weaving/blacksmith scrolls and monster parts.
I'm wondering what caused this, who did it, and how to recreate it.
I'm guessing someone copied the packets from a fishing boat catch, and spammed them on the lake. (just my newb guess)