I'm currently doing my first playthrough of the Developer's Cut as a pure mage and loving it, but one thing is unclear to me. I'm finding more and more gear that increases a specific skill and I wonder: Are those items still usefull when the skill is already at 15? Can I use gear to somehow go over 15? I'm asking specifically for my main skills, which are Magic Missiles, Fireball, Firewall and Magic Blast. Thanks!