I want something more believable, anyway, with a Circle of Solars and such, it would be more believable if they were of moderate power and not of extreme, because eh. If they were of extreme power, it'd take more then one Raksha to match them, unless the Raksha was like, you know..an Unshaped.
As for Infernals, sources say [inside sources ^^] that they will be making an actual appearance. But the problem is they're antagonistic to all of the types of beings. So, yeah. They're like "Kill it all! Enslave it all!"