Its not random. The author can basically give whatever power he wants at the time to the MC and he'll just call it random... If he actually wants true random powers, he would have thrown the whole system concept all together and just use the powerlisting/random feature. Otherwise, it's a mess. The novel itself is... decent. Aside from being extremely rushed and short, it's quite lacking in anything substantial that would constitute a good novel. He didn't even bother setting up his main character and just jumping straight to the plot, geez.