In the mangastream trans Mavis didn't use any "prediction" magic to come up with a plan, if I recall correctly, unlike the mangareader version which clearly implies that. Just thought I should throw that out.
@luffydragneel
My annoyance is that Mavis has yet to offer anything new as a character and she acts as if she understands the guild members and this world better than anyone while she was stuck in a grave. Darklight and the rest that opposed my opinion, say that Mavis' reactions and behaviour are reasonable and don't fall into contradictions with Makarov's character. Understandable, cuz all of this was bearable and didn't bother me that much, except for one little happening:
Ivan shows up to the Daimato and while Makarov knows exactly what kind of man he is, to the point that he excomunicated him(his own son), he was not suspicious of him. Instead he rashly assumed that he was there "just to piss him off". Mavis, on the other hand, who has never even heard of Ivan(and therefore shouldn't even know what kind of man he is) immediately became suspicious of him and assumed the worst. You can say that Mavis is more inteligent than Makarov, and whatever arguement you wish, but one way or the other Makarov's behaviour was contradictory and I can only assume that Hiro made it so that Mavis would be shown off as the wise at the expense of Makarov, just to prove the general superiority of the 1st over the 3rd.
Her only worth was Fairy sphere. Everything else, Hiro could have made it be Makarov's actions and everything would be just as reasonable(if not more).
And lastly, since this will be my last post about this issue, I never intended to be offensive, cuz it seems to me that some people interpreted so.