Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
I made up this Zilean Build not a long time ago and i thought i should post it.
Its mainly for mid/late game because then u will prolly have zhonyas and the soul shroud/frozen heart which takes your cd down pretty much.
Combined with some CD runes and archangels you can spam rewind about every 3 seconds.