Fun guy
Tough guy
Though largely in part to how claustrophobic the camera can get up close, sort of like Nameless King's first phase in Dark Souls 3.
Main things to watch out for are that big lightning stake and the shockwave after digging into the ground.
Good idea to get some breathing room after every few hits since it's easy to miss their tells when you're wedged up his crack.
Rest can be dodged on reaction from audio/body tells.