I have played Zed on middle and i did pretty well but next game when i said i am going SoloTop they said no...is he good for only mid or for other,..?

well he can be played top and jungle too.

In top he is a bit like talon - does better in mid lane generally.

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i played zed on all lanes : top , mid , jungle , support - and he did good on all LANES
But he is best at jungle !

Until now I haven't even seen Zed mid in my games...

I play him mostly top, cuz fed assasin is good one
He can easily deal with all top champions if you play passive enuf

Zed mid is the best.

He clears the jungle really fast. Also never had issues vs him on mid...

I´v never been able to jungle well, dunno why a mental block or something. xD
But then i got zed and started to jungle with him and he is
VERY good in jungle.
he clears fast and no route is hard.
hes easy to gank with, now dont look at my history or anything,
i AM still learning both jungling and the champ.
but i would suggest people to play him jungle.

jungler better !