[quote=@PKMNB0Y]
[@Izurich]: Hm...

Thinking on the two, I think that Remi (funnily enough) is probably the more feasible option so long as "manipulation of fate" is brought into line. Marisa's big problem in this setup is that she has too much firepower to start with (I [i]really[/i] don't want to think about balancing encounters around Master/Double/Final Spark), so Remi is probably better in comparison.
[/quote]

Sure, onee-sama it is. Poor imouto-chan, got shafted, this must be the work of Fate Manipulation. 

On that note, that power is so vague that it practically means “Whatever the GM(s) wants it to be”, it can even do nothing at all because “Cerennia is not Gensokyo, thus beyond her jurisdiction to manipulate” something something.