Hello this is my second guide this time about Thresh.
Well, normallyhe is played as a support at the botlane but I thought that he would be an awesome jungler, because of his CC.So I decided to play him as jungler and also made a guide just for you. :)

Pros:-his gank are mostly succesful,because of his CC
-he can safe your own teammates pretty well and does a fast gank if it's needed
-in lategame he is, with the right items, very tanky and can deal an insane damage from his harvested souls from Death Sentence

Cons:-if he gets interrupted in his jungle he is not strong enough compared with other junglers like Warwick, Udyr or Nocturne.
-he sucks at quick farming in earlygame,but in late it's going really fast
-is soul dependent

For summoner spells i recommend Smite and Flash.
Why do I take them ?
Smite is a must have for a jungler,because of:
-you can steal red or blue
-you can clean your jungle much faster
-and you can steal DRAGON or BARON NASHOR

Flash is great for escape,initiating and chasing:
-you can get out(or into) of Nunu & Willumps Absolute Zero or from Jarvan IVs Cataclysm
-you can chase someone by flashing over the walland then get him there
-you can flash into a the enemy group an then doing your The Box and then Flaying someone into the wall of The Box

I choosed the 14/12/4 masteries.The 14 points in offensive are for the penetration masteries for dealing atleast a bit damage.
The 12 oints in defensive are for taking less damage from jungle creeps and also to get more hp in lategame.
The 4 points in utillity are for mana regeneration that you'll need if you give the blue to the mid- or toplane.

For runes I take Greater Mark of Attack Damage for the Death Sentence, Greater Seal of Armor, Greater Glyph of Scaling Magic Resist and Greater Quintessence of Gold.
Why do I take this runes ?
I take armor,because he don't get armor per lvl and every jungler needs armor for the lowered damage
The magic resist glyph are for lategam and,because you don't need magic resist in earlygame.
The AD,how I already explained, is for the damage from Death Sentence,because it's scaling with AD.
The Greater Quintessence of Gold are therefore that Thresh isn' good at farming in earlygame, so for the early gold income i've got these runes.

Well i know it's noobish to build Warmog's Armor but you need it to tank the whole ultimates,because you are a tank !!!
Mercury's Treads are for the tenecity you need to be not perma CC'ed if u initiate.
The philosopher's stone is for gold regeneration and for the regeneration at all.
[spirit ston]] is getting upgraded after Warmog's Armor into Spirit of the Elder Lizard for the true damage you deal with every ebillity except Dark Passage.This is very helpfull if u fight against tanky people.
Blade of the Ruined King is pretty helpfull in fighting (again ;))against tanky people.And the self heal is amazing when you got full build and about 300 attck damage.
And aswell you need attack speed and magic resists,so you go for a Wit's End.And the magic damage supports your Death Sentence passive.

This is simple !
You try to hit an enemy with Death Sentence,but you wait until Thresh has pulled the enemy two times towards him.Then you activate Death Sentence again,so that you get pulled into the enemies/enemy.Right after you cast The Box and push the enemy with Flay into the walls of The Box.You can throw out your Dark Passage first or betwen your spells(how you like to do it).
Then just keep auto attack and you will get that kill. :)

Teamwork is the right word to win a game!
There are pretty much things you can do with Thresh and his Death Sentence Dark Passage combos.For example: you can throw your Dark Passage into your own team and then go with Death Sentence into the enemy team.After that you can cast The Box,because you get focused,because you went in first.
So there are much more combinations that are possible with Thresh and his team. :)
Just try team out and you can send me a massage so that i can add them here too. ;)

How i said at the beginning, Thresh isn't the best/fastest jungler but his ganks are pretty strong.He depends on succesfull ganks for his equip he has to reach to tank a teamfight.
Here is a simple jungle route which is pretty effective.

You are a jungler,so you just farm your jungle and the lanes you have to hold while the mid-,top-,or botlaner(s) aren't there.If u are farming it's mostly just the lategame,at helping to defend a turret or at pushing a lane to kill a turert.Don't forget to pick up the souls for your Damnation.You will need them!!
Now if u read the guid I wish you good luck and gank them well :D