Unstable: Barrier Fragments
Unstable: Barrier Fragments (54)
Although it was not a physical barrier it did manage to leave temporary fragments of itself after Salvarola moved it.

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Stats
This is a Unstable artifact set containing 8 artifacts
The difficulty level for completing this set is Hard.
Source:
Storm Legion > City Core
These artifacts can be collected during Unstable Artifact zone events in City Core. During the event you will see the artifacts as Blue shinys on the floor. The best way to farm the rarer artifacts is by hunting the Squirrel Thief’s. You can find information about this in the Unstable Artifact guide.
This set can be found inside artifact caches, looted from minion missions, or rewarded from the daily/weekly gifts
Rewards:
The Basic Loot Chest: Coffer of Goods
The Currency: A Planar Nut
Credits the Cheevo:
Unstable City Core
Artifacts in this set:
Fragment from the Northern Boundary
Aqueduct Fragment
Still Glowing Fragment
Fragment from the Cape Jule Division
Depleted Fragment
Barrier Generator Fragment
Control Fragment
Deteriorating Fragment
Aqueduct Fragment
Still Glowing Fragment
Fragment from the Cape Jule Division
Depleted Fragment
Barrier Generator Fragment
Control Fragment
Deteriorating Fragment
For a full list of collectible artifacts you can visit the Artifacts List.