This is my first guide. My english might not be the best, but i think you can understand me. I've decided to make this guide because I think Zilean is much more than a support champion. So here we go!

• You like to communicate with your team
• You like to piss off your opponents
• You wanna have fun
• You have fast fingers
• You like to help
• You dont wanna concentrate to last hit
• You hate dying

• Your teammates are also friends, so you can synergize with them easily
• You have a weak dps that will probably die first in battles
• Your team needs a disable
• You wanna have fun

Pros

• Saves lives
• Good farmer
• Nice ganker
• Exp bonus for the whole team!
• Very funny to play

Cons

• Low HP
• Low mana pool early game

This is a must. You can cast your ulti if you are silenced, stunned, taunted or else. This will save you. Maybe Time Warp is enough to save yourself after using this.

Sometimes it may happen you have 4 enemies around you after saving yourself with your ultimate. Flashing away and using Time Warp might save you.

Alternatives

If you are an expert with this and your team doesnt have any champion with scout abilities, you can take it. Cant say anything against it.

You wont be going back to base that much. Anyway this is a spell you may use, could be useful to help your teammates. Use it if you think its a good idea.

Rejected Spells

Not really needed. Your Tear of the Goddess will give you all the mana you need. At the end of the game you will have more than 3k mana. Just dont take it.

. Why whould you need it? you have [Time Warp].

. "Zilean you are a support, take Heal". Ignore those voices. You dont need to heal yourself or others. Running at insane speeds and reviving is more than enough for your support role.

... ¿?

Of course it may be useful, but are you going to replace cleanse of flash with this? not a good idea.

I take to have some starting AP and be able to bother enemy champs early game, to have some survability, without this you are too squishy and ur enemies will harass you. obviously to penetrate and make some damage to those who got some magic armor, and Greater Seal of Resilence for the same reason i get Greater Glyph of Magic Resist.

Get this as soon as you get the 595 gold you need to complete it. Zilean is funny because you can spam your spells, if you dont have enough mana, you cant.

CDR is also essential on zilean, as i said, its funny because of the spell spam, and CDR will help you spam more and more. Some people prefer Mercury Boots. If you get them you will have to worry about those 15% CDR, and since this build goes with Cleanse, you wont need the tenacity.

Catalyst the Protector It gives you some health (you may need it by that time) and some more mana, and it will obviously be converted into Rod of Ages later.

Now its time to start empowering your Time Bomb. By the time you get this, it will give you about 85 AP. Not bad.

. More AP, more HP, and more mana, wich is also more AP.

if you are having trouble with your AD enemy champions, this is the item you will need. If the problem is AP enemies, get Spirit Visage instead. Some armor plus the CDR, pretty cool.

really doesnt need any explanation. Now your time bombs are way overpowered, and you allies will revive with almost full health when you save them with Chronoshift

If you got Glacial Shroud, its time to get Frozen Heart. The insane armor and the attack speed reduction will now let you survive quite longer against AD champions. If the enemy team specializes in AP and you got Spirit Visage you may consider selling it to buy Force of Nature.

This is your last item. By the end of the game, more than one opponent will have a great magic armor, so you are gonna need to break it.

Get this after boots if you are being extremely succesful in ganks. It doesn't happen that much, but it was worth to mention it...

If the enemy team has a Warwick, Malzahar, and/or Urgot you should get this after Rod of Ages. It cancels the supress effect.

- Places a bomb on any unit, allied or enemy, which detonates after 4 seconds, dealing area of effect damage.
Zilean places a time-delayed bomb on a target. After 4/4/4/4/4 seconds this bomb will detonate, dealing 90/145/200/260/320 (+0.9) magic damage to all surrounding enemies.

Cost: 70/85/100/115/130 Mana
Range: 700

Your main skill. It deals great damage, and it can be used twice in a second using Rewind. Remember if you place 2 bombs in the same guy, one of the bombs will explode instantly, and if the bomb carrier dies, the bomb also explodes. It has many uses:

1. Farm: 2 time bombs can kill a complete wave of minions. No trick for this, just farm.
   
2. Lane control: any time you have the chance, place a bomb on an enemy champion. This will make him go away for 4 seconds, keeping him away from farming and damaging him. If a melee opponent is getting closer just to last-hit minions, put the bomb on the minion he's gonna hit, so he takes the damage.
   
3. Assisting: placing a bomb on a teammate is a good way to push him to initiate a battle. It will give you a nice advanage by damaging all the enemies, and if your teammate dies who cares? you have Chronoshift. If you are laning with Amumu, Singed, Garen or Rammus (i may be forgetting some champions, but you get the point), you can imagine the chaos it is.

- Zilean can prepare himself for future confrontations, reducing the cooldowns of all of his other abilities.
Reduces all of Zilean's other spell cooldowns by 10/10/10/10/10 seconds.
Cost: 50/50/50/50/50 Mana

This is what makes Zilean who he is. If your Chronoshift is in cd, spam it til its ready to use. It will also make you run at max speed all the time late game combined with Time Warp, and also slow an enemy champ permanently. Awesome.

- Zilean bends time around any unit, decreasing an enemy's Movement Speed or increasing an ally's Movement Speed for a short time.
Zilean increases an allied champion's Movement Speed, or slows an enemy champion, by 55/55/55/55/55% for 2.5/3.25/4/4.75/5.5 seconds.
Cost: 100/100/100/100/100 Mana
Range: 700

You get one lvl of this first to avoid early ambush or maybe to actually perform an early ambush. You can use this to gank (slow the enemy) or save an ally by speeding him. Awesome too.

- Zilean places a protective time rune on an allied champion, teleporting the champion back in time if they take lethal damage.
Zilean marks himself or an allied champion with a protective time rune for 7/7/7 seconds. If the target would take lethal damage, they are instead transported back in time, regaining 600/850/1100 (+2) Health.
Cost: 200/200/200 Mana
Range: 900

"**** that Zilean". Thats what your enemies will say everytime you use this spell. Dont hesitate to use it when an ally is in danger. Even if he doesnt die, it doesnt matter cuz you will be able to use it again in no time because of Rewind. Its all about timing. You have to use it as close as possible to your ally's death, so your enemies wont see it. If you use it wrong, your enemies wont hit him anymore til ur ulti is gone. 7 seconds is a lot of time to run, but you never know. By the end of the game you should have saved about 10 lives. Its too much.

- Increases experience gain of all allied champions by 8%.

A bit more exp to your team. No comments.

I hope you find this build useful. It has always worked for me. Most of the times I pick it, i end up dealing the largest amount of damage in the whole game, as well as being the best farmer and why not, a legendary streak. You just need some practice, good timing, and fast fingers!