need help with AoE macro

i am trying to get this macro to work but all abilities dont activate, either Blur and Nemesis dont work or Chaos Nova and Fel Barrage doesnt work. Not sure if i can get this to work, any advice on this ?


/targetenemy [noharm][dead] /cast [nochanneling,combat] Blur /cast [nochanneling,combat] Nemesis


/cast [nochanneling] Immolation Aura /cast Chaos Nova /cast Fel Barrage

EDIT: I have tried abilities in Sequence with different modifiers for each ability