Teras Kasi huh well if your gonna do PvE first go up the power tree you get really nice combos Meditation tree is so helpful once you reach master cause you can cure disease,poison, and almost any other status ailments and you get to heal your own wounds!!!! than the next box would be balancing the precision tree will develop on it's own so don't worry about that
and a support profession for TKA? well it really depends on your style of play if you want to take more defense than go with something like swordsman(for melee damage mitigation) or something like that I personally went with medic heal yourself in the middle of battle is a valuable thing
AND DON'T FORGET: if your gonna use VibroKucklers put them in your quicktab bars because the HAM cost for VK's are horrible I've been killed more times using specials with VK's on than just a straight battle always keep that in mind