Here is the list of special skills. They are divided in two categories physical and mental. I tested all them in the editor.
*i: I added the skill costs to help determine if you have trained enough, since skills from items and bonuses do not count. You know you have enough of each when the skill cost appears as listed.
physical
Quick Strike : 6 Dexterity (cost 8) + 6 Melee or Pole (cost 7)
Parry : 6 Dexterity (cost 8) + 6 Defense (cost 5)
Blademaster : 6 Melee (cost 7) + 6 pole (cost 7) + 6 Strength (cost 8)
Anatomy : 6 Intelligence (cost 7) + 8 Melee or Pole (cost 8)
Gymnastics : 8 Dexterity (cost 9) + 6 Strength (cost 8)
Pathfinder : Untrainable
Lethal Blow : 8 Anatomy (cost 8) + 8 Blademaster (cost 9)
Riposte : 8 Parry (cost 7) + 6 Blademaster (cost 8)
Sharpshooter : 6 Dexterity (cost 8) + 8 Bows or Thrown (cost 6)
Mental
Magery : 8 Intelligence (cost 9) + 6 Mage or Priest (cost 8 or 7)
Magical Efficiency : 8 Magery (cost 8) + 8 Endurance (cost 8)
Resistance : 8 Dexterity (cost 9) + 8 Endurance (cost 8) + 8 Hardiness (cost 5)