Discipline

Discipline is a skill from Fire Emblem: Path of Radiance and Fire Emblem:Radiant Dawn.

In Radiance, Discipline does nothing. It is used solely for a plot reason for Greil to have low stats in the prologue. The version of Greil used in the prologue, however, has stats as low as he does regardless of whether he has the skill or not; the skill does not affect him in anyway.

In Radiant Dawn, Discipline makes the rate at which characters gain Wexp rise. Meaning they reach weapon levels faster, in other words a Paragon of weapon experience.