Yasmini and the other Dreamers are all Time LordsOr part-Time Lord, or Time Lord clones, or whatever. Besides the fact that no WMG is complete without a Time Lord theory, it actually makes a certain amount of sense. Their Psychic Powers arise from a weak connection to the Time Vortex.
Yasmini is River TamOr, more likely, some kind of parallel-universe counterpart thereof. Psychic Powers that cause insanity? Check. Unwilling agent of an evil government? Check. Combat training? Check. Shooting people with eyes closed? Check. Waifish good looks? Check (though Yasmini is blonde whereas River is dark-haired).
The whole Malik Nous/Satan thing was suggested by Ivan BraginskyTo say that Russia took a heavy beating from the Fall is an understatement. For it succeeded in breaking whatever was left of Ivan's sanity. Like his people, he felt betrayed by God and turned to madness. So it wasn't surprising when he blabbered to his Czar during the chaos about taking up the Malik Nous cult along with the Sisters. Not only did the Romanovs agree, they even gave Ivan a cover as Malik Nous' "physical guardian." A few generations later, with the implication that his siblings and Baltic chew toys long dead sinking in, he's even more insane.
The apocalypse, the psychics, and the Malik Nous cult were all started by different factions of The Mind.This is another of Their attempts to create a relatively nicer future, but the same bastards who sponsor the CUT in the Emberverse are trying to make it even worse.