Yeah, so basically, I, personally, do not buy the very same action being at the same time "cause havoc within Skaven" and "steal their shit with Johann",
@veekie . And only the former can actually help Spiderfriends, unless we luck out and steal something rare/irreplaceable, like Doomwheel or whatnot.
(how would we even lug it around? Doubt Substance can cover the entire thing)
edit: and former may or may not provoke Mors into striking back, and I'd rather not do that while Dwarfs are not fully established just yet. We'll go make some hell once dwarfs tell us they are ready to stab all Skaven that may come rushing in response.