From Guild Wars 2 Wiki
Poisoned Ooze is a trophy required for the The Juggernaut III: The Colossus legendary weapon collection.“
— In-game description
- Coat yourself with your Mystic Chromatic Ooze and get hit by the poisoned environment while fighting Old Tom in the Uncategorized Fractal.
- This item does not enter your inventory. It is added directly to the collection.