I'm looking for fics where Ranma fights his curse form in his mind scape. There are fics I have read but kinda can't locate at the moment where doing so was part of accessing the full power and nature of the curse form. Others it lead to Ranma discovering the spirit from the spring and making deals either to cross train or time share the body.
But really any situation where Ranma ends up fighting his curse form in his own mind at some point in the fic counts.