For me, Grimm is a good pet. The only "mythic" item I have. It works fine at level 40. I also like it's passive ability. I m a big fan of banishing. But I face a problem here. I know it's chance to banish is only 5%. I can see it's banishment in watchers tomb only. The banish circle is also small but in that heavy mob at least 4/5 mobs fit in that banishment circle. But every time I notice it only banishes 1 or 2 mobs. I think there's some problem in my Grimm