Extinction Roulette

[Humanity’s extinction has already been determined.] 

Without warning, the screen seen around the world signaled the extinction of humanity. The beings who once proudly put human before their species’ name now would hunt and kill their own flesh and blood without hesitation. Anyone who lives through this hell has been given one ‘skill’. With unimaginable powers on their fingertips, people with the strongest skills dominate this new world, and those with weak skills either submit or die. But even for the weak, there is a glimmer of hope, for every kill you obtain directly strengthens your skill.

But what one has neither a weak nor a strong skill? What if a truly unlucky person had a skill that couldn’t be strengthened at all? A skill that could make one as strong as a god but also as weak as a chicken?

A skill whose only effect is to have a completely random skill every day?