Hi and thanks for such awesome guide! It helps alot with playing Kaelthas. Your build is (in my opinion) best build for kael on heroesfire. But I've experienced that while playing vs zeratul/nova Arcane Barrier (lvl 16 talent) works pretty well because when you are both at lvl 16 they can really take you down with their combo (you lose much dmg from not choosing ignite, but you get really good survi). In any other cases - this build just ROCK!