Its been so long since i wrote this guide XD. But I still do play Zac jungle on occasion so I'm going to update it. Thanks for all the tips, I'll keep those kinds of things in mind while I'm updating this two year old guide XD

Just some rough thoughts:

• Try Health or HP5 Quints, or a mix of both. They are hilarious for your early sustain and you don't really need the 10 MS from quints as you already have an insane gapcloser. It's up to preference, though.
• Sunfire Aegis is a core item, even after the nerf. It is hilarious for cleartime and damage and should be build every game. (Core = Spirit of the Ancient Golem, Sunfire Aegis and Spirit Visage)
• Anti-AP build is waaay to much of MR and totally lacks armor. Even against 5 AP, u need some armor for towers and monsters (-> means that Sunfire Aegis would be nice to have).
• Zhonya's Hourglass and Rylai's Crystal Scepter are a waste on Zac.
• Guardian Angel is quite situational and therefore should not be in your recommended build.
• MPen Boots can be quite a good choice, where Mobiboots aren't that necessary because of your E and should be swapped out later in the game. You don't need Mercury's Treads as you already have tenacity from Spirit of the Ancient Golem. Best choice is usually Ninja Tabi.
• Try maxing Q first - the dmg and slow is awesome for ganks and your E has too much cd to be used more than once in a gank no matter what level it is. You level it second for the longer range and dive potential. W is mostly for percentage damage which is stronger lategame, so max it last.
• His ratios are ****, so the points you put into AP in offense are better in the defensive tree (4/26/0 or even 0/30/0).

In Total: One of the better Zac-Guides around; still room for improvement, though - keep it up!

Greetings, Isolanporzellator

The Greater mark of Hybrid Penetration are viable if you're looking to do more damage to their tanks with your auto attacks, but Zac doesn't shine with his auto attacks when built this way. With the majority of his damage coming from his AP based abilities, i feel that the magic pen marks are more useful.

*edit* spelled Greater mark of hybrid penetration wrong

why no click on "edit" then? :P

Ohh ****, bad Coding :P on my comment.

I never actually played Zac before, but this guide....... :D. And what do you think about Greater Marks of Hybrid Penetration on Zac, nevertheless its a great guide.

I've made some updates and there is more to come, but right now i need some sleep.

This may help you with your first guide.

Thanks emoraim, its my first guide and obviously has a lot of flaws in it XD. I'll do some updates to it tonight.

You should just simply rush Spirit of the Ancient Golem due to the improved gold income. Rylai's Crystal Scepter isn't core at all and isn't that good on Zac anyways. Liandry's Torment has nothing in common with item against AP, it's just a damage option. Against AP you might consider picking up Abyssal Mask ins some situations. You could also mention Thornmail, Locket of the Iron Solari and Sorcerer's Shoes/ Ninja Tabi. There are some coding guide out there and I suggest you to take a look at other guides' structure so you'll see what chapters you should add.