Hi, This is a jungle guide for the new champ : Darius!
Lets go !

Pros:
Easy jungler !
Very POWERFUL
True damage ult + physical penetration shut down off tanks/carrys and guarantee kills on most ganks.
Nice engage on E
Crazy dance :o
No cds on ult can make some surprise multikill and globally powerfull

Cons:
Not that fast i think
Cant escape reliablely :/

Begin at blue , then Volfes,ghost,red *possible mid/top gank here* and golems
Basic route ofc:)

Pretty huge physical pen , flat life can be used on the quints.

Since you have a HUGE physical penetration , you dont need that much of damages, so build frozen mallet + atma is a must. Then turn it into a powerfull offtank who can endure enormous damages and barely One shot thoses enemys carry !
I prefer ninjas but mercurials are good too vs ccs or casters teams :).

Basic jungler set up, surprise flash + E can be powerful
E€haust can also be take , but ur bot lane could already have it and red + frozen + Z slow like HELL.

Just come in the fight and KILL THEM ALL!
You can engage teamfight thought his E well placed on enemy carry/caster
:!!!: Be aware of the reliability of ur E! you can use it on a chaser who gonna kill your carry/caster and keep him alive , and make this chaser ready for ccs and zone spells :) :!!!:

First: sorry for my bad english, isnt my native language :/
Then thank you for ready this ,its my first guide, hope you liked it :)
Its a very theoric guide so any of your comment will be greated :)