Duplicates made from speed force energy. They're probably even dumber than you think I am, but they can follow simple instructions and routines. Clear the civilians, protect an area, that kind of thing. And since they're essentially tangible energy, they don't react like physical beings.

[He's not about to tell Inertia they can be destroyed, but they are less vulnerable because they can do everything he can.]

There's two guilds, officially. The Guild Alliance are this world's version of the Justice League, but they're government sponsored. Apparently there's this whole big thing where powered people are legally obligated to certain things, which, yeah, ugh. The other is the Society of Villainous Reformation, which is about as legit as you expect, too. Neither are exactly shining examples. And then there are the unaffiliated.

A Confluence is the local parlance for when people start popping over from other worlds. There's no real pattern for who or what, or even when people come from. The local government will put you up for two months with a relatively unlimited but monitored line of credit to try to start a life here, but...well, there's no reliable way to go home yet.