The other day I was searching through head gear for bard and was gonna go do delve for fast cast
I had just warped home after getting rapid shot feet and accidentally found vanya hood has fast cast for bard so I went back
Bunzi's Hat (Nahtira Hat) is a non-augment FC+10% that can easily be searched through this website, so you would have found a better and more modern piece if you search for it.
Relevant augments in 2025 are
- Alluvion Skirmish Armors and Weapons
- Unity Rewards
- Oseem augments
Than there's also Divergence Weapons, and JSE necks and Capes
There's also 119 Abjuration gear and Nolan sets from Escha. They might seem outdated, but there's a few pieces here and there that fit very BIS niche slot situations (I still use Ryuo Somen +1 in NIN Gokotai DW build, because it has highest STP and DW you can get in head slot, but you can't search the STP so you wouldn't necessarily see that in a search). I'm pretty sure my COR uses Pursuer's Pants for when I have Flurry2 active for max Rapid Shot.
As I mentioned, it's also Odyssey gear and augments too. I've found a number of instances where I was looking to build a set and Odyssey armor was preferred, but there was no augment search capability. For example, when I first started making a RUN SIRD set, I started out with Taeon, but then found better pieces in my search. Eventually I stumbled upon Agwu's Pigaches, which at R30 have SIRD-10%. I ended up not needing any Taeon or Agwu in my set at all, but the point is it would have been nice to search for the stat and see everything in one place, rather than jump to several pages to see augments.
Another (larger) issue I've found with augments is that absolutely nobody bothers to update the wiki anymore. I was building SBII sets on various jobs, so I went to the BG Wiki Subtle Blow page. It had the first few common items from Omen era and Su4/5s, and nothing after that. Mpaca's Hose was missing, Ikenga's Hat missing, Gleti's Knife missing. I added them, but I found several specialized pages just like that where no mention of the relevant gear is even listed (go to the BG Wiki Daken page, no gear is listed. You'll never find Tsuru or Kunimitsu unless you had it ranked up high enough or knew it was an augment for the weapons). The previously mentioned Agwu's Pigaches still were never added to the Spell Interruption page, but Agwu's Cap is on there (the difference is one is an augment and the other is not). People just don't update the sources anymore, so it's much harder to find stuff you're looking for.
My advice: Check all of the above gear sets' augments after searching for Items on this site. It might be buried in one of these pages as an augment that nobody updated.