It's not that ad zil is bad innate of itself. It's just that ap or support zil is better. I can almost guarantee you will have better results with an ap Zil

@Radomir
You can NOT play ad soraka, mainly for 2 reasons:
1) Soraka benefits a LOT from ability power, ALL of the abilities get boosted by AP. For Zilean it's just the bomb and a few more useless hitpoints for revive.
2) Soraka have a heal, silence, magic resist reduction.. none of that will help you escape of hunt someone. Zilean has a slow for hunting OR haste for running. Plus he has a ult when all go horribly wrong. He can stay alive and keep his distance from enemies. I added a chapter to the build that summarises the reasons AD Zil can work.

@Nightwalk
Thank you very much for the pictures, i will remake the names to include them. Also, i don't need that much speed since i have a slow / haste. Check out the last section that i added recently, it's explained there.

@Unknown Power
Thank you for revealing to me the power of battle pictures..

one thing man when you decided to throw a "crazy out of the ordinary" build. you MUST post a lot of battle pictures proving that it works. because most ppl will down vote it instantly because it seems too impossible to be true. now im not saying it doesn't work but for builds like this, pictures are a MUST.

You should use

((Name))

For images. Like Doran's Ring

Just replace the brackets with square ones like []

As for AD Zil, well, meh. It work's and he gets **** loads of movement speed, however generally ap Zil/support is better. Can't say much more then that.

i do not see where AD zil is viable either. can there be some more explanation?

i really dont like AD zil because he doesnt have any uses out of ad items but if u wanna play it ok(u could also try AD soraka and have about the same success)
i would like to see a reason why AD is viable till then i call this a bad guide

not the best build, and AD zil isnt werry good, but well writen, and IF you want to play AD zil, think this is the build