This is my second guide at all, and this build worked fine everytime i used it.

My Runes are jungling Runes espiacally for WW.
I take AD Reds, Armor Yellows, AP per Lvl Blues and AD Quintesssences.

The AD and Armor Runes are quite normal and in nearly every Jungle Guide i know, but the blues are special.
I use them because of his Q. It got a 1.0 Ratio of ur AP, what makes it worth to get some AP Runes in my opinion. They are useful for ganking.

My masteries are are quite balanced, in Red some Armorpenetration, in Blue some defense and in Green the Buffduration.

I start with Wriggles lantern like all AD-Junglers normally do. After it i get some Items to increase my Ulti-Damage (Madreds and Wits End)

An Item which is duty on WW in my opinion is Spirit Visage. It stacks perfectionally with his passive and makes him much harder to be killed in 1v1.

After that, i get some Lifesteal. First Zekes what gives all WW needs:

Health, Attackspeed, Lifesteal AND CD (for ulti)

After that u have to sell the Wriggles and buy a Bloodthirster for some Extradmg.

On that Point u can easily solo Baron.

The advantage of this Build is it's cheapness. There are only 2 rly expensive items in it the rest is quite cheap but works great.

I HOPE U OWN!