Board Thread:Questions and Answers/@comment-25235588-20180717200605/@comment-34497523-20180719231640

The probability of powers is completely indeterminate and only calculable if you already have experience with those kinds of forces. The common manifestations of power come from dna alterations and fundamental keys that enable beings to withstand the process or strain, the power brings. Powers themselves are mere extensions of the user, so the rarity of any power is completely relative to the user's own experience.

In short there are no ways to tell what kind of power will emerge at any given time, unless you know things.