User blog comment:BannedLagiacrus/Monster Appreciation Week: Nargacuga (4th Gen)/@comment-3298463-20161007095950

Same problem as most monsters they brought back from earlier gens: they didn't change it at all from P3rd and 3U, which in turn only added one new attack to the FU version. Narga's still a pretty good monster but it's starting to show its age with its dated animations and simple AI. If it comes back in the next game, it would benefit from a makeover like the one Tigrex got.

Also Adept is already kind of easy mode, but it's downright broken against some particular monsters and Narga is one of them.