This means you now have legacy items
Uniques in POE are supposed to be UNIQUE, not better, fluffed up and fancy rares. Some are just fluffed up rares, yes, and others are simply leveling items, but the majority have UNIQUE modifiers on them that cannot be gained anywhere else in the game, and as such can be build enabling. What you're thinking of is something along the lines of Legendaries from other games, which are the super GG items that have no better equivalent and are very rare.
For future reference, any characters in temporary leagues will be returned to their parent leagues, regardless of whether or not the game-play mechanics are being transferred to the core game. However, any League Specific items that you have in your stash/characters will also be transferred to standard, once again regardless of if the mechanics are going to the core game. This means you now have LEGACY items.

Aug
Path of Exile: Delve Coming Soon
Path of Exile has been announced that players will soon have the opportunity to descend into the deepest, darkest parts of Wraeclast come August 31.

May
Path of Exile Skill Revamps - Part 4
Yes, this is Poe4orbs, welcome! You must have known some impressions on Skill Revamps, which would be the most important part of PoE Content Update 3.3.0, and GGG has just announced the 4th part of Skill Revamps, if you want to get more advantages in the game, you'd better know more about this skill revamp.

Dec
In Path of Exile you have two different resources that keep you from dying
In Path of Exile you have two different resources that keep you from dying. Feels free to compare to other classes if you're not feeling raider is up to par, or if swords isnt your thing.

Jun
The Latest Builds for Path of Exile 3.3
In Path of Exile Incursion league, most of the players are looking for PoE 3.3 builds for Marauder, Duelist, Ranger, Shadow, Witch, Templar, Scion, these are the main class in this game. So Poe4orbs will share some newest Path of Exile builds to you, hope these could be helpful.

Dec
Improve your clear speed and also make the PoE more enjoyable
Just 2 quick things that might improve your clear speed and also make the game more enjoyable

Aug
PoE's Currency System Is Not Perfect
You do not begin to see the flaw in getting a game title about loot corporation where many people are playing around using the same setups, melee builds = botb/starkonjas/tombfist