I read on the wikia that there is a snake-eyes luck attack for the swordsman in arena 2, Is that a good attack to get for that class or should i focus on the aoe attacks?
Actually, I think that the snake eyes attack is only available to Gamblin' Jack (http://telepath.wikia.com/wiki/Snake_Eyes).
The swordsman class in the wikia includes a general description that includes many possible characters from different games (not only from TPA2).