It's almost as if the "My Precious" achievement wasn't really designed with an overbuilt max level character with a long duration huge area of effect damage ability in mind. (I fire a few charged shots but none of them hit anything because all the enemies die before I can aim at them)

https://video.typica.us/videos/watch/1b5f55a9-ab78-424e-bde7-6d797309b96b