Having kill Crate with all kinds of builds, I have a different experience. I always had fun figuring out the proper strat for a specific character and practicing to be able to do it. But yes, you need to have good dps (or alternatively a bit worse dps but with dots / totems / sigils or other ways to safely deal damage which is probably the specific builds you’re talking about).
For me it would be Callagadra that’s not very interesting and usually just a form of training my reaction times with heals and dodges since I usually play squishy builds.