So this is my first build and please dont judge me. This is how I play cho'gath, if you don't like the build there are way better builds at the internet but this is how I play him :)
This is a guide about JUNGLE Cho'Gath.
And thanks to Searz for the awesome guide format! You can find it here.

Mouse-over any items or abilities to see their tooltip.

Legend

(for any abbreviations you don't understand)

Why Cho'gath?
Pros:
- Realy nice sustain
- Awesome CC
- You can eat people :D
- You can build everything and stil be tanky
- Nice skins :D
- Not bad damage for a tank
- You can secure kills with your ultimate
- Overall a nice champ.
Cons:
- Rupture can be easily dodged
- High spell costs
- Ganking can be Hit (Rupture) or miss.
- Bad matchups
- When at 3 rank ultimate and full stacks you get soo big that it gets anoying

I go 0/21/9 masteries whitch are nice for tanks and give you everithing you will need. Since you are a tank you dont need to build that mutch in Offence, but if you want you can put 9 points there, taking the Magic Pen. mastery. I prefer putting the 9 left points in Utility tho because you get the the movement speed from "Swiftness" witch is pretty nice since you dont have a gap closer.
Here is how 0/21/9 masteries look like:
BUT you loose that survivability.
Here is how 0/9/21 masteries look like:

Greater Mark of Alacrity

Greater Seal of Resilience

Greater Glyph of Shielding

Greater Quintessence of Potency or Greater Quintessence of Swiftness



For runes i like having some AS for low levels, Armor because its realy nice in the jungle and lets u stay in the jungle for ever, Flat AP quints because I'm maxing W first and I like having some MR for late game. BTW Movement speed Quints are also viable.

- You take Smite because it's a must have for every jungler.
Then you can choose between those spells

- Awesome spell, you can use it to flash over walls, chase, juke.... Its just awesome.

- Nice if you miss Rupture since if you miss it the gank is failed or you can Exhaust them and use Rupture so they cant dodge or atleast they will have to burn flash.

- Yet again nice spell, expecialy for the AP build since it is CD reliant.

- Nice replace for Flash if you arent good at flashing over walls.

- While i dont use this spell it looks like a good one for the bruiser build and it makes you even bigger, so immagine a fully stacked cho with third rank ult and this spell... Just HUGE

AP tank build


Maxing Feral Scream first for utility, Vorpal Spikes second for jungle speed and Rupture Last cause it's slow doesnt increase with ranks.

Bruiser build


With this build you max Vorpal Spikes first because you buy alot of AS, Feral scream second for the utility in team fights and Rupture last again cause it's a 1-point wonder.

For items I like to start with Regrowth Pendant and a Health Potion, but if you dont have armor runes and you wont get a leash you can also go with Cloth armor and 5 Pots or if you will get a NICE leash and you are planing to counter-jungle Boots of Speed with 3 Hp pots can be nice aswell. I will explain counter-jungling down bellow. OR if you decide to go with 0/9/21 masteries you start with Regrowth Pendant and TWO Health Potions

Rod of Ages
This item is a must have as AP Build and should be buyed as quickly as possible


Abyssal Scepter
Realy nice item for AP Cho'. it gives you MR, AP and a nice aura.


Frozen Heart
This item is actualy pretty nice for Cho'gath. More mana - More spels and the armor is nice too.



Shurelya's Reverie
It can make you a bit more supportish and still tankier. And the movement speed boost its awlays nice. Now its getting more poppular to be 2 in one team (the support and the jungler)


Wit's End
Awesome item if you are playing with the Bruiser build.


Atma's Impaler
Yet another nice item for the Bruiser build, since Cho is one of the few champs that wouldnt need to combine Atma's with Warmogs because of the health from your ultimate.

Trinity Force
A great last item, but the reason that it's in the "Situational items"its because its soooo expensive. Otherwise a great last item for BruiserGath.



Randuin's Omen
Realy nice item, it gives you a AoE slow and makes you tankier.



Force of Nature
Pretty nice item if you are having problems with AP carries.


Zhonya's Hourglass
Pretty nice if you think you are dying too mutch. This can replace Rabadon's Deathcap but dont do it when you are fed and don't have and probs. Rabadon's Deathcap Gives you soo mutch AP that you will need so i don't think it's that nice when you are fed.


Spirit Visage
This item can be pretty nice with your passive and it gives you MR. It may not be that good but its still a good item that you can buy.



Aegis of the Legion
A nice item but i think it will be better for your support to buy it.


Guardian Angel
Not bad item, the revive will help you keep your ult stacks and its a nice item for every tank.




Thornmail
Don't like this item that mutch but if the enemy team is something like 5 AD's consider buying it.

VS.

Alot of people are wondering if they should take Abyssal Scepter or Void Staff but i will tell you why is Abyssal Scepter better. Abyssal Scepter will ignore the same MR like if your target had 50 MR. If they have more Void staff will ignore more MR but its better for AP carries not AP tanks since you dont det MR from it and Abyssal Scepter works for multiple targets. If you ask me always buy Abyssal Scepter since you are a tank.

Mercury's Treads


Ninja Tabi


Ionian Boots of Lucidity

You should choose Merc's treads if the enemy team has a lot of mages or/and CC.
If they have lots of AD champs you should go with Ninja Tabi.
If their team is balanced and doesnt have any CC you should go with Ionian Boots of Lucididy

You can go two paths. Blue first or Red. Blue is a bit safer, but Red is a little bit faster.

Blue path:
1 - Wolves
2 - Blue (Smite)
3 - Wraiths
4 - Wolves
5 - Red (Smite)
6 - Small golems

Red path:
1 - Wraiths
2 - Red (Smite)
3 - Small golems
4 - Wraiths
5 - Wolves
6 - Blue (Smite)
Then u are level 4 and u should go gank.
You can also try to do a lv 2 gank but i dont think it will be that good, but it can suprise the enemy team and maybe you will get some kills.

Just a note:
Counter-jungling is not the most viable thing to to right now. Because of the jungle remake creeps respawn faster so you will waiste time in the jungle, but if you want to counter jungle you should continue doing it over and over


Start with Boots of Speed and 3 Health Potions. Kill wolves, then you should ask your team for a man leash. If you are wondering what this is watch this video: Play Video
All credid goes to Stonewall008 for the video. Just like he sayed in the video you can save smite to counter-jungle and that is what you should do. After blue you sould go to the enemy jungle and if you are jungling against a slow jungler (WW, Rammus, Malph. etc...) you maybe can take their red or if you are jungling against some fast jungler (Udyr, Amumu, Skarner etc...) you can just go to their jungle and maybe smite their big Wraith, of 1 of the small golems. Remember when counter-jungling is that you shouldnt do it just once, you should continue doint it making the enemy jungler weaker and weaker.

People you should NOT counter jungle:
Nunu - Because he will just counter jungle you (if he already didn't do it)
Shaco - Boxes will rape ypu
Trundle - The jungle is his teritory. If you get caught... You are ****ed.
Shyvana- The new Nunu... nothing else to say.

So lets say you are jungling against a some other jungler, and you want to hurt him a bit from the start.There are a couple things you can do.
1) - Sneak into his jungle with your whole team and ask your support (or the guy that buyed wards) to ward at their blue. You can try to steal his Blue from the wall and run away.(Smart junglers always Smite when the creature has low hp tho)

2) - You can again sneak into his jungle, ward his blue or red (depending where he starts) but this time you can leave him take the buff and then if he is alone and isn't getting a leash just kill him and then instantly go kill your blue so he doesn't steal it (or atleast ward it)

3) - Just go with your whole team and instarape him if he is alone. (This is a bit risky and if the other team is good it probably won't work.

4) - If your team doesnt want to invade but you want to do it, you can go and steal something like his Wraiths.

As I sayed you cant just steal once, once you start, you shouldnt stop. You can use some wards and try to smite-steal something that the enemy jungler is just doing or you can use bushes to steal it unseen. Here are some good spots to hide yourself yourself and their creeps while killing them.



Then after you stole a good thing you can to is to write in the chat the time their blue/red/dragon/baron will be up so you can steal it again when it spawns. (Help from team is always nice)
By the way when you counter-jungle osmeone he will try to counter it by stealing your jungle so you should kill your own jungle creeps (or pass it to your carries) fast before he steals it.

Cho'gath is a tank so you should initiate fights and CC the sh*t out of people. In a team fight you should always focus their carries and try to protect your team aswell. Another nice thing you can do with cho is to kill minions with Rupture - Feral scream combo, giving you some HP that can sometimes help you survive a team fight. If you and your team are running away try to predict where you should land your Rupture so your team hax a better chance to run away.

Thank you for reading my guide for jungle Cho'gath, if you liked the build/guide please like it and leave a comment.