I'd have to disagree with Unaware fitting a samurai; being airheaded or unaware of an opponent seems like the opposite of what you'd want in a sword fight.
Kinda agree with Decidueye and Tinted Lens, but if it fits Noctowl and Hoothoot, it also fits Decidueye.
My point with Unaware is that would fit not in an airheaded perspective, but rather in a "I still see you for what you are" or "I simply don't care about your buffs" perspective, unlike the usual airheaded Unaware Pokémon. It would also fit Gallade and Mega Gallade, since that was being discussed, from that point of view. Though Defiant do seems more of a match for the oval hips psychic swordsman. (And would probably make me use Gallade, as I don't bother with physical sweepers that don't either ignore/get buffed by Intimidate (as Inner Focus now does in Sw/Sh) or have at least Mold Breaker to deal with Sturdy. I do have a hard time resisting Iron Fist and Sheer Force, truth be told.
Tinted Lens doesn't fit Noctowl too much, though. I believe it gets it just because of Hoothoot, as it does make sense for Hoothoot to have it. I see your reasoning, though.
What do you think of Salazzle, by the way? I always thought Corrosion is a great ability for a bulky poison Pokémon (such as you made Swalot, even though the ability matches Garbodor way more) and that Salazzle kind of doesn't really benefit that much from it. Do you think she should have other ability (something at least somewhat useful for her, like Aroma Veil, which is still fitting) or rather Corrosion should be different (as in bypassing steel-type immunity to poison attacks like Scrappy does) and still exclusive to her and Salandit?
I'm trying not to suggest changing it, as I would probably try to fit Mold Breaker everywhere. But then again, you didn't see me try to make everything get Bonemerang to deal with Sturdy without the need for Mold Breaker, as much as a Defiant Krookodile with Bonemerang would be something of beauty, so I guess I do have some self-control. XD
It does sadden me a little bit that you can't include the Intimidate immunity into the abilities that were buffed in Sw/Sh. Then again, I guess if you could do that, you probably could insert the new abilities as well.
Edit: I was considering Decidueye and I see now why you ended up with Tinted Lens. Most fitting abilities doesn't seem that much impactful, such as Grass Pelt, Keen Eye, Sniper, Cursed Body or Steakout. The most impactful of the fitting ones would be Infiltrator. I guess Clear Body would be acceptable, but Tinted Lens is just as valid as Clear Body, in terms of fitting the flavor.
Looking through these abilities, I realized how incredibly good Flower Veil is on a grass Pokémon, which then made me check which Pokémon now get it, Meganium being such a great choice of yours. Other Pokémon I thought would fit the ability are Jumpluff and Sawsbuck, which, in turn, ignited a small idea on my head: what if each form of Sawsbuck had a different ability? Not all three of them, but at least one, something along these lines:
Spring: Flower Veil
Summer: Grass Pelt/Grassy Surge
Autumn: Soundproof
Winter: Fur Coat/Dazzling
Visiting those grass Pokémon brought me to Leafeon, which I feel is weird with Filter, but I suppose we fall again on the Decidueye dilemma. Guts feels nice on Leafeon, but Flareon already has it as HA, so I guess you didn't have that many options. Flower Veil would be awesome, but not fitting, so, Clear Body, I suppose. Better than Hyper Cutter (which would make sense for those swordsmen Pokémon). There's Sap Sipper, too, which is kind of fitting with Vaporeon, Jolteon, Flareon.
