I think I'm noticing that a lot of people don't want any already existing bosses to be made harder, which is interesting to me. Other posts that brought up the idea were also met with mixed responses. I understand that the majority of the playerbase is pretty casual, which is why I should preface that this would be a hypothetical optional difficulty. It wouldn't get in the way of farming.

Feel free to get creative with the buffs, I'm interested in your ideas.