Warboss Imbad Ironskull wrote:How does having random powers make it unbelievable in terms of evolution? Evolution is random in itself
Evolution is unpredictable, but not random. You could justify a sort of random effect in the same way that individual people are, in the colloquial sense, randomly given to certain genetic predilections like being stronger, faster, or tougher. So you could have individuals with a certain affinity for fire magic, or conjuration, or whatever.
Or, if you don't consider that important, you could simple say something like "Magic is weird, and no one really knows." though that doesn't seem to fit with the idea of magic as an evolutionary trait.