Okay, I play Shadow Priest in Onyxia, recently i realized why my damage output was low. And Then i Check the spell, those are Mind flay and vampiric touch still level 1. So I go to trainer for learn it, but cant be learn (unavailable) my level was cap (70) and i put mind flay talent and so Vampiric Touch.
Was it Bugged for My char ? i've tried reset talent and change to HD Client wotlk but still not work.