Quote Originally Posted by BillyKaplan View Post
And therein lies the crux of the matter, doesn't it? Because it all boils down to a matter of design and decision making on the side of the devs. Because they could've made it that broken - but didn't.
They did smart things, like keep status resistances on a lot of the bosses and even some overworld enemies. Tail Screw doesn't work on dungeon end-bosses and not even on B ranks (fully resisted, thank the heavens). But the flip side of it is that BLU by definition will never be the broken, dangerous entity they advertised it as being because that sort of thing isn't only game breaking, it's also only too easy to grief. Imagine an S rank spawning and gets two shotted because someone Tail Screwed it to 1 hp, and followed up with a Flying Sardine. Breaking the ToS? Sadly, no. Pissing off an entire server's hunting community? Definitely. So SE were smart enough to not let us do that.
But then if Tail Screw doesn't work, what else in my kit is supposed to be useful instead? All these 150 max potency attacks? Oh no wait my bad, some of them do more if there's a status ailment - which these enemies are immune to. WELP.

And it kind of makes sense to me because BLU lives in the overworld. It levels there, it does its quests there, it does get a lot, if not too many, of its skills out there. So BLU had to be reigned in in the overworld.
But as soon as the devs did that they basically admitted every reason they ever gave to locking BLU was a half hearted excuse because these very limitations are what they said they didn't want to impose on the class, but then they went and did it anyway.
It would be fine to make it so dungeon bosses were affected by skills like Missile and Tail Screw, keeping the flag for not working on open world bosses (FATEs and hunts alike). Unfortunately, they didn't do that. Especially if it's never going to be doing current content - I see no reason to bar this. To be honest, I'm completely amazed Bad Breath works on every monster I've encountered, bosses included. That was the skill that I thought would end up being entirely worthless and not even apply the poison.

No, BLU does not need to live in the open world. The fact that most of its skills come from dungeons/trials and Masked Carnivale itself is an instance leads me to believe that it levels in the open world, but exists in instances like all of the other jobs in regards to content.