The gain command is used to learn new skills, once the proper trainer has
been found. The following options can be used with gain:
gain list : List all groups and skills that can be learned
gain points : Lower your creation points by 1 (costs two sessions)
gain <name> : Add a skill or skill group, at the listed cost
gain convert : Turns 10 practices into one training session
gain transfer: Turns 1 train into 10 practice sessions.
Gain uses training sessions, not practices. (see 'help train')
Gained skills and groups do NOT increase your experience per level or total
number of creation points.