Zilean Guide - MobaFire/Pro Builds Come help!

So.. im a big Zilean fan.. he was one of my first champions.. and i still love him till now, however im struggling finding a good build. Im looking for a full ap/mid build a full tank/top build and an ap/tank build. I have alot of ideas and past games to go with that i can use to my advantage. plz leave suggestions, comments, random memes , all would be fine by me