How to get Secret Shield-Weaver Armor for Invincibility in Horizon Zero Dawn: You must find all 5 Power Cell Locations and bring the Cells to the Ancient Armory.
Doing this unlocks the trophy "Got the Shield-Weaver outfit" (Recovered an ancient technology and put it to use).
The Power Cells are found in mission areas but you can go back and get them later. The missions areas are locked until you reach a certain point in the story. You can still free roam after beating the story and collect e
آی-ویدئو