Is this good build for Zed?

You have little armor pen and CDR. Assassins scale off of those. You created a direct, 1v1 build that excels on even, 1v1 grounds. Unfortunately, mid/late game is team fighting. You also don't auto much as Zed, so the crit isn't so good. I'd replace Phantom dancer with BC and the boots with something like swifties for the speed. You also, more often than not, want a mercurial scimitar for the CC that will be saved for you, so I'd replace i.e with that. And, chances are, there will be two strong sources of magic damage so you'll want the maw of malmortius for the shield, so replacing BT would be ideal as, again, you don't auto much.

swap berserker boots for anything else.

swap phantom daner for cleaver.

then its ok.

imo -> -> -> / (only if you are really keen on building deaths dance, then here.....) / ->