I could see that uniques acquired out of the era they belong being dropped by “time-aberration-like monsters.” The monster being encountered would signify that you have good odds of getting something out of the ordinary from defeating it.
Also, in kind to divination cards, you could acquire fragments (splintered over time) of the unique that once completed could be placed in an eternity cache and assembled, upon finding it again.
I don’t think I was advocating for any particular power expectations from using uniques, and that I just feel that trading uniques in of themselves is immersion breaking. Uniques not being trade-able can also allow for leveling story-progression uniques acquired from quests.
Finally, I mentioned above and your response didn’t include input to this and I wanted to flesh-out the idea further (I appreciate your participation on the forum in any capacity as is). What of uniques that belong to older era’s being found normally in advanced era’s but appear worn or tarnished from deterioration, or possessing some evolved attributed from the passage of time. The deteriorated versions, could either just be a form of the bad rare drop, or also used in an eternity cache to restore it to its original functionality. The items could possess different lore or descriptions on the flavor text too, and there could be some other tag evidencing the era the drop was found. The evolved versions, would not be specifically better either, just a variant of different build enabling properties. As a game-lore fanatic seeing the uniques have some indication that the progenitor of the unique shaped the history of time they were from and had in some cases a continuing effect in the time-line would be appreciated.
I just recently re-read Sarno’s reply. I didn’t read it thoroughly the first time, but I believe my suggestions about era effect should apply to both Uniques and Legendaries. For the trading aspect, I am used to uniques being traded in most games, so its not a big deal from my perspective, its just a preference that they shouldn’t.
Finally, what is going to differentiate a unique from a legendary outside of rarity? The uniques already possess “exotic” functionality in relation to the affixes you get from normal gear. If there can be some clarification on what “exotic” would be that makes a Legendary feel different from a unique would be appreciated to know to look forward to seeing implemented.