So I just checked Vel'Koz's wiki page.

And his Battlecast skin has a bunch of unused quotes, and well, decide for yourself how awesome they are :

Unused "My eyes are up here." "Target is inefficient." "Odd. Their intelligence drops in the presence of poros." "A human who survived the Void? Implausible!" "An evolution of man and Void. How unusual." (laughs) "Yordle recognition complete." "99% fur, 1% glee." "Zilean, there is a great secret within you."

How comes they were taken off? Any red post on it? I can't find anything.