ToME WikiNo spoilers here, please. NO SPOILERS HERE!
The Swordmaster is a Warrior who specialises in swords.
The training is so intense and specific that Swordmasters gain huge bonuses when fighting with their chosen weapon, dependent on their Sword-mastery skill. In most other respects they perform about as well as a generic Warrior.
Starting stat modifiers, starting Skills, innate abilities and starting equipment: Please see the in-game help.