Unstable: Transient Pus Formations
Unstable: Transient Pus Formations (55)
Although technically not pus, the substance that pervades the Pus Swamp does make interesting formations, some frequently enough to have been named.

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Stats
This is a Unstable artifact set containing 14 artifacts
The difficulty level for completing this set is Hard.
Source:
Storm Legion > Seratos
These artifacts can be collected during Unstable Artifact zone events in Seratos. 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 Seratos
Artifacts in this set:
Fistulated Pus Ball
Knuckled Mucus Stick
Crystallized Globule
Hardened Slime
Dangling Secretion
Dripping Emission
Bloated Seepage
Engorged Pus Bladder
Moist Film
Creamy Orb
Burst Gobbet
Flowing Swamp Butter
Oozing Discharge
Fetid Tubule
Knuckled Mucus Stick
Crystallized Globule
Hardened Slime
Dangling Secretion
Dripping Emission
Bloated Seepage
Engorged Pus Bladder
Moist Film
Creamy Orb
Burst Gobbet
Flowing Swamp Butter
Oozing Discharge
Fetid Tubule
For a full list of collectible artifacts you can visit the Artifacts List.