Yeti On The Lam!
You know, Mimics could probably actually manage that mainly using Gatecrasher. You choose the Secret World of Angels, or the Secret World of Magisters of the Light, and you have access to the behind the scenes stuff about that group that no one else really notices. You get access to "Basic Moves" that mimic (no pun intended) the base abilities of that type of being, and you get Plot Devices to masquerade as them in random and specific situations.2) Since Mimics are supposed to be able to pass for seven other types of characters -- Angel, Devil, Magister of the Wild, Light, Dark, or Serpents, and Divine Imperators -- I wonder how the do it with a set of arcs. Perhaps the "Costume" power in Troubled has undergone a very big change
(I like the new Arc assignments, but I'm unreasonably grumpy that there are no Otherworldly Arcs for any of the Excrucian types, just because it messes up my inevitable attempt to do a Bleak Academy game with every type using all of their arcs.)