New players can't hunt the limited items since they don't return. 3rd Blades are available in a lot of players shops but once again you can't drop it anymore, you will have to spend Donation Token$ for that upgraded version of Eternal Night. And for Wings ... oof, you can't hunt it, you can't find it in players shops... and if you do, you will have to spend a ton of money. That's why I don't think that "This item will not return in the future" are compatible with the concept of Time Attack... UNLESS, the stats are the same as a regular recurrent item.