i also noticed iris had the magician timeless shield, maybe it is from old time? (like really server started time where everything is still around). things like pyogo mushroom, doomsday staff and many more other items were also not in found the library but still around as they were able to get it previously.
Have noticed this with pendants/face/eye accessories too. Not even just event stuff. Thought it'd be because lots of it doesn't drop from monsters but there's other things in the Library that also don't.
there is only items that are obtainable in library currently, less those that were get from event, and those that get from gacha (randomly).
We did a Gachapon overhaul a while ago to make the game more nostalgic, which rendered many pendants/face/eye accessories unobtainable. As a result (in order to prevent confusion), they've been removed from the library.
PQ items do seem to be missing too I guess, like Broken Glasses or Ciders. Thanks for clearing up the rest. Still would be nice to know what equipment you can consider even if you need to buy it from other people.
although our current saga library does not have most of the item (referring to previous gacha and too OP item like past mage equipment), you may want to check the hiddenstreet or basil market for their base stats or highest stats, it is similar to those on the main server. this is only applicable as a reference when you want to buy items from others (e.g flawless guy mask?). just for comparing purposes. for rather rare items like pyogo mushroom, timeless magician shield, or demon wand, if you see it, you can just purchase it it should be priceless