 So the Ascendant Lens unlocks the secret Festival of the Lost Triumph, simple as that. To get the Ascendant Lens, you have to get 45 Cypher Turds in which you can only hold 25 at a time, and are bogged, what a surprise. Fastest way in which you can get these Cyphers is by doing the Pryd Nightmare Hunt, have fun. Once you have sat there slowly dying trying to get these, you then need to use these and open up 45 caches within the Haunted Faust, still not getting that perfect roll whole story. Once you've opened up the 45 caches, Spider upon a Tangled Shore will have a quest for you. The quest is to go there and speak to him. He gives you an Ascendant Lens in which unlocks the secret Triumph. There, done, simple. Hope you enjoyed the video, and I'm out.