I like this build cause it's so easy to jungle with it.When you go to blue you've no probs to kill him because you'Ve such a life leach because your attack-speed that so nice.^^

I take armor pen marks because of more dmg per hit and attack speed seals glyphs and quintessences for more attack-speed at the beginning and with the build 2,5 attack-speed at the end.

I take tanky masterys with 8% attack-speed and armor and less ad dmg from minions and others.
I skilled smite for a bit more gold per use.

I take normal jungling beginning items and making a bloodrazor and then for more heal per hit the Spirit Visage.For more attack-speed and life steal i take stark's favor and Black Cleaver for more armor pen and attack-speed.I take hextech-Gunblade because the life steal the spell-vampire for the Q-spell and the unique passiv to slow and of course the ad and ap.

I take Flash for flashing away or fash to gank and of course Smite for a jungler.

Starting with blue and going to wolves then to the red buff then golems and so on.