Start boxing red on 0:55 and after that look for gank. If there isint any lane you can gank then conitinue jungleing (wolves,wraiths,golems or blue if u have smite and atleast 50% health). This build is very strong in mid and late game cuz you can kill squishi targets in maximum 5hits(Later on if enemy dosent have armor then 2 hits).Remember to join teamfights last.And look only for enemy AD carrys and squishi targets.If you kill them fast then get out the fight and wait for your Q cooldown.Use E only then if you dont have red or unmovable targets(becose of its passive its what work only then when the skill is not under a cooldown if you didint know). With almoust 10% cooldown reduction you can box even more and almoust lose at any health before level 2.

26 Offense just to get out the maximum dmg and for easier jungleing with Butcher and Vampiris in earlie game.
4 Defensive to get some armor and Summoner's Resolve just for jungleing.
You dont need Utility. You dont need extend red and blue buff time(if you are good jungler you dont run out of mp or your E passive already slows if you dont have red). You move fast enough with mobility.

There is nothing much to say after you are lv6 and have Wriggles you can solo dragon(just for those who dont know) you just tank with your ultimate(R).

Runes are just for faster jungler and the glyphs are just for a little bit resist from big burst. Some other attack damage are very useless becoze they give you very little damage boost what is not needed if enemy kills you fast. 12 armor pen from runes becose then you get toal 20 armor pen with masterys and making true dmg to blue and red buffs. You can pick something els instead of cooldown glyphs whatever you like more then cooldown reduction.

Trinity and infity edge just to get the sheen and critical damage.
Last whisperer for against high armor.
Warmog+atmast just for lategame if there will be teamfights and your enemys are focusing you.

Your team needs atleast 1 full tank or atleast 2 offtanks becose you cant always stay in fight atleast in earlie. Try to use your ultimate to get 1 enemy follow it and if that succseeds you can kill him(worked couple of times for me :D ). Sometimes roam around and ward enemy jungle that helps your team and keep timer on enemy buffs(sometimes give buffs to your teammates but to it then when the lane is pushed otherwise enemy might figure out where you going).

This is my first guide and I dont have good english so I hope you like it ^^. Try it atleast 5+ times becose I have carryd whole team with this build and have got some pentas.