You can start a team up for the Mimic Gold Skeleton Key Boss w/ stone
So the subject limit butchered what this is about. Essentially, you can start a team up for the Mimic Gold Skeleton Key Boss Sigil with EITHER a Stone Skeleton Key or a Gold Skeleton Key in your backpack. As you can see in this image, I have no keys in my inventory. imgur.com/jSd5Ffu There is no stone key lock in that sigil.
