Skul The Hero Slayer - Playthrough Part 19

I had to stop my first run early because of a weird glitch, which wouldn't let me drop down a ledge. On my second run I got the Shadow Knights spell early on and it's one of the best in the game filling the screen with dark horsemen who kill anything in sight. Later on I replaced it with the Weapon Master one since I had more physical attack, while the knights rely on magic. I barely defeated the empowered warrior - he is a damage sponge and his attacks are all over the place. I reached the archbishop and his second form and things were going pretty good, but he killed me. He would teleport to the edge of the screen where you can barely reach him with skills to do proper damage and his lingering lasers do continuous damage which is a problem since you don't get invincibility after being hit. At the end he killed me with some random explosion that I couldn't even see, because I was tracking all the other bullshit on the screen. Fuck this guy.