The Revenge of Monster Magnet!

Pfft, sez you. Pink Been needs over 200 acc to 100% hit. It's only natural that monster have higher avoid as the difficulty lvl increases.

About AP into HP for blood build, that's a tough debate. I should say it's very infeasible if the boss hits an excess of 15k however.

It is also natural for a boss to hit more damage as its level increases.

Phoenix, I believe you got it right. These ranged classes complaining about it need to suck it up considering some classes don't even get the chance to step into a boss room unless they're lucky or just because some runs had extra space.