This boss concept is way too strong for permadeath, you pretty much don't get to mess up and if you do your build is wiped, plus you have to beat layer 2 first, which means to learn the patterns (way stronger, way more than any previous boss) you will probably wipe tons and tons of builds. There's no reasonable way to learn the boss even though it's a cool concept, and the true damage and healing is just ridiculous
Nah cause the same could also be said for Ethiron and my friend beat it first try anyways, so there’s a decent chunk of people that can maybe do it first try. I think that it would be good if after the first phase you had the option to turn back or just beat chaser as a way out though