Hello everyone.
My name is Pro Sivir and this is my guide to Jungle Twisted Fate.
I just realised this build with a bit help from some youtube videos.
This is a really enjoyable build on Twisted Fate.
You will also reach the nice 2.50 ATK Speed cap with this build.

You want to maximize you ATK Speed since you will get most out of it when you max out your Stacked Deck first.
So for in the start having all Greater Glyph of Attack Speed, Greater Mark of Attack Speed and Greater Quintessence of Attack Speed will help you a lot.
Stacked Deck triggers every third attack and since you'll have AD masteries for most part this will help a lot more than getting AP focussed runes.

You'll get Greater Seal of Armor to survive the early damage from the jungle mobs, because otherwise you'll take a lot of damage.
I'll also be posting a section about how to kill monsters in the jungle since it is a bit different because twisted fate is ranged.

You'll also get 3 Greater Glyph of Scaling Magic Resist for some late game protection, these runes will be mostly negated by most AP Casters in mid with their Greater Mark of Magic Penetrationor runes with magic penetration or with their items.
But than you still got your standard MR, so even this little bit helps.

So for the runes it is best to get these:

For the masteries I take the standard 21-9-0 for AD focussed champions who use spells in between (like fighters).

Now this is where it gets interesting.

You'll start with the standard jungle items in the beginning:
1x Hunter's Machete
2x Health Potion
1x Stealth Ward

Than at your first back you should have enough money (3 camps) to get:
1x Skirmisher's Sabre
3-5x Health Potion

Finish off your core as soon as possibile after this:
1x Skirmisher's Sabre - Devourer
This will help you a lot with clear speed and ganks, since now you'll be dealing damage, if you got your ultimate and this item, try to perform a gank.
Smite your opponent for extra damage after you stun them and start smacking them with auto's.
1x Boots of Mobility - Alacrity
This item will help you a lot with ganks too, sicne you'll be less reliant on your ultimate and more on your Red/Yellow card from Pick A Card
I Prefer the Alacrity upgrade on boots of mobility so you don't lose to much movement speed if you have to chase someone after you attacked them or they attacked you, but it's nto need and understandable if you prefer another enhancement.

Finish off your core with:
You'll now have close to 2.50 ATK Speed and will reach it when you hit level 18 (or a bit sooner).
1x Wit's End
If you buy this item you'll even get mroe damage on your auto attacks, also you magic damage on auto attacks will be dealing more on the opponent since you'll steal their magic resist while upping yours.
1x Runaan's Hurricane
This item is really good on Twisted Fate with this build, sicne your ATK Speed will increase even more and your auto attacks will attack multiple targets.
Hitting multiple targets helps your clear speed in the jungle, which in term helps stacking Skirmisher's Sabre - Devourer faster.
Hitting multiple target on minions of the enemy in lane will help you push lanes faster and get Towers way easier.

Defence:
Choose some defensive items if you want to survive team fights and actually be able to do something, since they will focus you a lot. Build like a fighter/offtank in the end.

The preferred finishing build:
1x Randuin's Omen
Great defence item overal, gives some nice health boost and armor against AD focussed champions. I'll buy this mainly if I need defence against AD.

1x Banshee's Veil
Another great defence item, with some nice health bonus and magic resist good versus Magic Damage focussed Champions. The awesoem passive is also something to look at.

Some other options that I don't take that often are:
1x Warmog's Armor and 1x Guardian Angel
This combo is fun since you'll make more annoyance if being alive with the Health bonus from Warmog's Armor while Guardian Angel makes up for the Armor and Magic Resist Warmog's Armor misses and vice versa.

Against full AD Team:
1x Randuin's Omen and 1x Thornmail or 1x Sunfire Aegis
Prefer to take Thornmail if enemy team is more auto attack related.
Sunfire Aegis if the only auto attacker is their ADC.
Some AD are more Spell Damage focussed than others, but most of the tiem you'll be going for Thornmail.

Pros - Will win most 1v1 fights after core - Very good split pusher - Easy objective control - Always gank pressure with ultimate - Amazing teamfight with Runaan's Hurricane

Cons - Bad ganking before level 6 - Can be invaded early - Squishy in Early and Mid game - Needs items to deal REAL damage - No immediate escapes