Fixing MapleStory

Yeah, there's a lot of room to make that stuff require skill instead of funding (or just plain being a certain class, eg. kaiser's 100% resistance in transform).

Bosses are more fun when you can outsmart them to win. They're less fun when you get to watch another class pwning them with ease, therefore cheapening the loot. Brute force as the only necessary ability, combined with a massive gap in the level of brute force a class can wield (a literal 1000x difference is feasible) makes it impossible to balance bosses at all well.

I kinda feel Hero's Will ought to be more spammable, or at least act as a preventable on-demand 100% resist shield. That way you are at least in control of avoiding more deadly effects.