nuking

Alright, I got the mage body, but I am not noticing any difference. It still will only cast dia at the beginning of a fight, and then melee. Am I doing something wrong?

Hello!^^;; Im am a lvl 30Blm/15Smn, currently on lakshmi, Im soon getting a world pass for Que. What are your opinions on Blm??? Do you think they are usfull in Partie's? Or are they just for nuking?