[2022] How Do I Get a Berserker Ring Drop

You can pull aggro on the Rex and then lure him over to the southeast corner to mage him down then rinse and repeat.

Here is a guide from Tonix: https://www.youtube.com/watch?v=7VuQVjVxLh8

You'd also be able to do similar with the Prime in the northeast, but the Supreme often walks close enough and can aggro onto you

You've got this, Champ! Hopefully the next trip you can get the pet + the B ring

Went about 4k dry on getting the Rex pet, so if I could give you one of the 30+, I would!