Why is my sorc not dying? Am I bugged?

The new powers made the sorc basically invincible? Andariel cant kill me in t4, I never seen such a thing. That fire beam just passes through me without any damage visible. Is this a bug or am i really invincible? The only enemy that I saw any visible damage and had to move out of the way was lilith in t4 and even that was a breeze. I never killed lilith solo on t4 before and this season it was like nothing.