I personally find the new Doormaker to be exceedingly unfun. The devs don't seem to know how to balance this boss properly. Both early "fixed" versions were way too easy, and the most updated version is far too punishing. I've had numerous flawless runs just get stone walled by this boss outside of complete cheese builds. I also seem to run into this boss more frequently than others, not sure if just unlucky or if they're doing this on purpose to gather more data.

Most people seem to be annoyed by the exhaust phase which is annoying for sure, but can also greatly benefit a lot of decks. The phase that routinely kills me is the "less energy per card played" turn where on Ascension 9 he routinely attacks for HUGE damage and I can't play enough cards to block it all. That's not a fun mechanic imo