The humans have the Jack of All Trades trait, which give them a minimum of 20 skill points in all skills.
Assuming that my Bushido skill is at 0, and I put on a +10 Bushido ring, would my Bushido (with the ring on) be at 20, or 30?
Assuming that my Bushido skill is at 0, and I put on a +10 Bushido ring, would my Bushido (with the ring on) be at 20, or 30?