User blog comment:Zambu/Useless passives/@comment-5514182-20130502012656/@comment-7547062-20130502070422

His passive allows to sustain his mana in lane, so you can mantain the harras for ever.

While it is a laning passive, and out of lane it is useless. But at least it helps him... Adding something like: the passive+ "after killing a champion, he restores a % of his mana" or something like "he restores a % of the enemies life after killing it, if it is a champion, he restores a higher % on kill and assists".

That way it would allow him to sustain himself in teamfights.

But that is not the point, I think is passive has some use at least. The point is, would you give him his passive?