The real skills that kept him alive were the boring physical ones.
Stabbing.
Striking.
Climbing.
Staff Mastery and many more.
He had picked up all of them through pure repetition of simple things and desperate situations. Stab enough things with a sharpened stick and the system gives you a Stabbing skill. Hit enough things with a rock and you get Striking. Use a long branch as a weapon for two weeks straight and Staff Mastery shows up.
At Level 20 his Stabbing skill had evolved into something called Mana Powered Stab and suddenly the system told him he had a Mana stat. It had been at zero his entire time of almost 17 days on that day and he didn't understand what it did.
He spent one precious stat point to bring it from 0 to 1 as a stat and because he figured a mana-powered skill probably needed mana. The only thing happened his empty mana pool expanded and allowed it maximum to 10 mana.
