Ability - The amount of SP (Skill Points) a unit has.
Badge - The amount of BP (Badge Points) a unit has.
Speed - How quickly a unit moves during battle.
Mobility - How many spaces a unit may move on a map.
Attack - The strength of a unit's physical attacks.
Magic - The strength of a unit's non-physical attacks.
Defense - A unit's ability to defend against physical attacks.
Resistance - A unit's ability to defend against magic attacks.
Accuracy - A unit's likelihood of landing an attack.
Luck - A unit's ability to dodge attacks, to land a critical attack, to claim spoils from defeated foes, and for some attacks: the chances of robbing an enemy.