Thanks for checking it out. I agree! I tried to make each class feel powerful in a unique way. It is a delicate balance that takes iteration. I play tested them quite a bit. I tend to err on the side of easier for 7DRL since I don't anticipate people will spend much time playing so I rather they have a good first experience.
I have tried with this game to add a difficulty slider as an option to let people that want to spend more time playing a harder game. Thats something I didn't play test much though so not sure how far it can feasibly go. Maybe Wizard will be a good class to push some higher difficulty.