We broke skills out into Plateaus that require you to seek out a Teacher. Plateaus amount to another way to facilitate roleplaying. Skills are divided into major and minor arts. There are four classes, or foci, in the game. Only those in the same focus can learn major arts.
Minor arts are more difficult to learn by cross-focus disciples, but it is possible.
Your art is also linked to your level, or orbit, so you cannot attain a greater power in an art than your current orbit. We make a distinction between pkilling and random pkilling. Random pkilling has no point, no goal behind it. Basically random pkillers don't care about roleplaying, just combat. They attack anything that moves.