A melee character that misses out on the bonus feats, but gets abilities that mimic spells that are supposed to work as debuffs? That's what the dark monk is, and almost no one actually uses those debuffs, mobs die too fast or get dcs that will prevent the spell from landing unless you drop everything to focus on spell dcs. If a good debuff melee was required, just fix up the dark monk's debuffs instead please
(Ninja Spy III would be awesome too :3 )