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Recommended Items
Runes: Snowball
+8 Ability Haste
+6 Armor
+65 Base Health
Spells:
Flash
Smite
Items
Ability Order
Cell Division (PASSIVE)
Zac Passive Ability
Threats & Synergies
Kayn
His insane amount of healing and generally slipperiness makes you a walking heal-stick. Hard to hit with CC and is hard to stop late-game.
Yasuo
Your long range enage knockup is perfect for yasuo R, especially as you'll continue the CC chain a while after the ult.
Yasuo
Your long range enage knockup is perfect for yasuo R, especially as you'll continue the CC chain a while after the ult.
Champion Build Guide
This is my personal build/guide that i use for most of my Zac games. I'm a otp zac player with about 1,200,000 mastery points, and have been playing him since he was released. I used to be Diamond, but don't much care for ranked anyone due to toxicity, among other things.
In general, i found this build / playstyle to be highly effective both when you need to carry randoms or play with people you trust. So whether you want to climb or just have fun, i hope this guide can be of help to you. Feel free to ask questions and i'll answer to the best of my ability.
Keep in mind that this guide is based on my preferred playstyle. It favors ability haste (AH) and tank stats, and useful actives/passives for baiting and controlling fights.
This may not be the way you like to play, so don't take this as an ultimate source of truth.
NB! This guide is a work-in-progress for the new season and will be updated regularly as i figure out what works and not.
Although this philosophy applies to many champions, it has some extra advantages for

- Picking up blobs heals zac. More blobs = more healing.
- Each blob pickup reduces
Unstable Matter's cooldown by 1 second, which deals percentage hp dmg. This means you can fight both tanks and squishies once you get enough
Ability Haste.
- Lower CD on
Elastic Slingshot means faster map traversal. You're also harder to catch.
- Shorter cooldowns = faster clearing (not unique to
Zac). An Xp and Gold lead is essential for being able to snowball and carry games, so efficient farming is key.




It's worth noting that aftershock still is a great choice, and it really depends on your preferred playstyle.
If you're used to


Phase Rush
This rune has great synergy with Zac, and can be useful for both escaping fights and stronger engages.
It needs three hits to trigger, which can be basic attacks, abilities, smite, and so on.
The increased move speed has many advantages for Zac:
After a successful


After a failed


In fights you'll be able to pick up more blobs with the extra speed, which means more healing and more activations of

Pro's
+ Easier to escape when missing

+ Easier to position yourself for CC chains
+ Extra damage from

+ Deals with 'typical' counter picks that abuse Zac's low mobility when E is down
+ The slow resist counters slow-based champions
+ Zac benefits greatly from the Sorcery tree
Con's
- Still need three hits to activate, can be hard if CC'ed
- Less room for error without the initial aftershock tankyness
Aftershock
Still a really good choice for Zac. I would recommend going this if you're not that experienced with Zac and Phase Rush. With aftershock you can tank more damage after engaging and deal some extra damage when it ends, which often can be game changing.
When using aftershock you should be aware that missing your E leaves you very vulnerable. Unless you're able to apply CC by hitting two different targets with


Pro's
+ Extra dmg when it ends
Con's

- Less mobility in fights
- More easily kited / harder to escape
BOOTS
Get it if the enemy team is full ap and/or have high amount of CC that's not knockup. You trade away some AH which means less dmg and clear speed
Get it if the enemy is AD-heavy and/or auto-attack focused. You trade away some AH which means less dmg and clear speed.
MYTHIC
Currently one of the most suitable item for Zac, but not a perfect fit. Has great stats and the extended fight passive can be really useful. This item is most useful when ahead, as you need to survive long enough to get the passive online. If you do though, it compliments his playstyle as he has to survive long enough to pick up blobs and heal enough in fights.
A good fit, especially if you like to play around your team in a more supportive manner. The extra HP and AH when ulting + the HP from the passive is great for Zac. The stats and healing it grants your teammates is also great.
Against AD teams or a really fed carry. The single-target cripple is great if you need to shut down a single AD target, and the tenacity/slow resist Mythic Passive is a great addition as Zac can be countered with hard CC late game.
The massive HP gain and max-hp damage can be good, but it's hard to proc as you can't AA during when ulting. Is powerful if you can consistently proc it. Works best with aftershock due to the playstyle, and because it increases your size which makes you a bigger target.
LEGENDARY
The health stats is enough to justify this item, but the passive can also be really useful. Even though Zac doesn't need the passive, it lets him engage over and over again as long as he doesn't die. Since his playstyle revolves around engaging from darkness, warmogs also makes the enemy feel like nothing is safe unless they know where Zac is.
I build this most games.
Expensive, but perfect for Zac. The active helps you survive burst lategame, which is a problem Zac has even when going


I build this most games.
The improved healing from the item passive makes Zac really hard to shut down when ahead. Pick this item if the enemy have AP threats, and the enemy doesn't have too much grevious wounds.
A really strong item if the enemy goes crit, and gives a good amount of armor and hp.
The passive is also really useful if you need to prevent enemies from escaping / kiting you, and with the new smite slow nerfs it's even more useful than before.
A good 5th/6th item for Zac as it enhances his damage and fits well with

A good item, but only worth the gold if you need to prevent enemy healing. Remember that many bruiser will heal a lot off of tanks, so you should also consider changing your playstyle if this is problematic.
Not a great item on Zac, but useful in some situations. Good as a 2nd mr item if the enemy is full ap, or if the passive conters the enemy well.
Your main goal is to farm 3 rotations as fast as possible. This is an essential part of being able to snowball because XP is at least as important as gold for getting ahead.
You can typically get in one gank each clear, possibly two if you're fast. Try to be at krugs for the next rotation when it spawns. The third rotation will then spawn at the same time as blue/red, making it a really efficient clear, and putting you in a good position to control the game.
You can either back after one clear for finished boots, or two-three clears to get kindlegem as well. Remember to always have 1-2 Control Wards on you as you need it for objectives and map control.
Take dragon if you're close and you spot the enemy jungeler topside. Zac can solo drake because of the healing from his passive, just make sure it's not warded as you're i trouble if enemies appear as you will be low and you're weal alone.
Standard Combo



Once you've ulted, your main focus is to spam

If you have enough Ability Haste, your


Instand CC with
Stretching Strikes and
Flash



Even better, you can get two key targets if you manage to hit one each with



Charging
Elastic Slingshot during
Stretching Strikes




To ensure the chain is unbreakable, the target must end up close to you after


Use
Elastic Slingshot to Reach 2nd Target



This move is kind of situational and it's often better to use


Flyby
Smite
It's a bit hard to pull off and requires practice as you need to start charging

Instant vs charged knockup duration

This gives enemy no time to react, so also useful against anti-CC abilities like fiora's

Longer: Charge for at least 1s, and the knockup duration is doubled from 0.5s to 1s.
The best zac skin. The color palette and smooth sound effects help calm the mind and reduce tilt.
Also it has ducks.
These skins look kinda mean so only pick them if you want to play agressively. Useful when going AP Zac or for more Spicy games.
No need to explain this one

By doing this you can see this build in the ingame shop when playing. You can also bind items to specific slots, so you don't have to move them each game to get the correct key bindings for active items.
How to import this guide to the LoL client
- Copy this guide's link
- Go to the build copier site
- Type a title, paste this guide's link, and click 'Submit'
- Paste the results into the client (go to COLLECTION -> ITEMS -> "import item sets")
Your item set will now be available in-game in the shop under the "items" tab.
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