>>21285113At the point you can find his evergaol, pretty hard because of how different he is from the things you've fought up until then. You (probably) haven't fought anything with his mix of fast and delayed combo strings, plus reach, plus punishing healing. I spent a couple hours on him as well, and I fought him around Ame's level.
He's much easier once you understand fast/delayed attacks, and that dodging towards bosses is usually you're safest option.
