Zilean the Time and Time and Time all over again. This guide i made is based on my gameplay and experiences in Rank games. This is my 1st time making a guide so it's not so very detailed. I'll make a better guide in the future.

*i'll edit this soon for more detailed guide*

Pros:
Can be heavy nuker or Support
Hard to kill with Chronoshift and Time Warp
Fastest CDR champ because of Rewind
Can haste the team and slow opponents
A good harassing Champ


Cons:
Mana suffiecient
Requires blue buff for greater effieciency
Squishy
His back luggage is heavy :)

I just use my common AP runes but still you can choose on what your game play needed the most.

Mark: Greater Mark of Magic Penetration - penetration means more damage
Seal: Greater Seal of Vitality - high starting health points
Glyph: Greater Glyph of Ability Power - more ability power up
Quintessences: Greater Quintessence of Ability Power - more ability power up

note: you can change GLyph runes for Greater Glyph of Scaling Mana Regeneration or Greater Glyph of Cooldown Reduction runes, depends on the players game characteristics.

I used Clairvoyance so you can Reveal a place for an instance, and probably needed for a support champ.
Flash for escaping measures.
-- or
Teleport maybe needed as well for helping teammates, escaping and pushing.

This is the skill order for Zilean
Time Bomb this is the only skill Damage Zilean has so max it out first.
on level2 get Rewind - 2nd skill to be maxed out
on level4 get Time Warp - for me this is the least skill to put points, the only change in this skill when you level up is the Duration.

Chronoshift on level 6,11,16 is important.


Optional: You can distribute points equally to you Time Warp and Rewind

Starting items:

Sapphire Crystal + Health Potion Mana Potion ---->
Tear of the Goddess Catalyst the Protector Mercury's Treads --->
Archangel's Staff + Rod of Ages + Soul Shroud --->


Final Items:

Mercury's Treads: for tenacity and magic resist
Rod of Ages: health/mana points + ability power
Archangel's Staff: mana points + ability power
Rabadon's Deathcap: huge ability power
Soul Shroud: Mana Regen/Cooldown reduction
Frozen Heart: cooldown reduction/mana + anti melee effects

Optional Items:
Although items will be considered depending on the Situation and the Enemy champs.
You can Use Banshee's Veil or Abyssal Mask if enemy champs are more on AP users
Frozen Heart for Melee Champs
Shurelya's Battlesong / Aegis of the Legion for support items

*If you are a Support champ try to let your ally get the gold, but if they're away from you consider the minions in your front as your reward.
*Use Clairvoyance on hot spots
*Try to rewind as much as possible for using Time Warp and for faster CD of Chronoshift.
*Use Chronoshift mostly on your carry champ ally.
*Use your Time Bomb efficiently. But how ?
--* When a minion is beaten by a melee champ try to put the bomb before the enemy kills it so
they obtain the damage. The next time they will be scared in last hitting the minions.
--* Try to put double bombs on champs by using Q-W-Q skill sequence
--* Put bombs on your ally tanks, very neat especially with Taunt skills Rammus / Shen. :)
*Do not be afraid to put your life in risk, you can lure enemies, you can slow them and haste yourself.
*Always attend clashes, EXP and GOLD is waiting for you.
*Be friendly :))

Zilean is very useful in hardcore situations, hope this guide will help you although it lacks IMAGES and some other Details, I'll make it better. Thanks for viewing my Guide.

LOL ph gamer: Eyezscream :)