I wish I could be excited about siren, I really do... T~T But I don't have Amy, so I'll just go train my Ryan to 40 or something instead. Curse my lack of enthusiasm for getting Amy via GP mission!
(favorite classes under title)
Grand Chase (NA)
Dark assasin, Striker, Swordmaster, Dragon Knight, Crossbow(wo)man, Warlord, and Fighter.
Magic Knight (Elsword 2nd job, "magical" branch)