What hack ?

i playing server [Only registered and activated users can see links. Click Here To Register...] and i see FS with blade buff .
What hack for have buff other class ? pls tell me bro

Did you see it with a buff on his blade?
He used Mortal Bane (a pink aura on blade) or Might Wish ( an orange aura on blade,like Blader and Warrior)

I pt with he and see buff of blade , he is FS in my guild .