is a Very Mobile Ap OffTank who can either Play Top-lane or go Jungling.
He has some good ganking potencial and early damage.
Late Game he`s a Beast and can tank alot of Damage while dealing heavy Damage.

Pros:
Very Mobile
Tanky
Early-Late Damage
Passive Self Heal
Cons:
Abilities cost Health

You are The Tank and Initiator of your Team! Jump in with your E, Do some AoE with your W and Slow/finish off the ADCarry with your Q and R.

LastHit like Normal and use your Q and W to Farm/Heal.

I recommend using Ghost for Chasing and Escaping and Ignite to Finish enemys Off.
You Could also use Exhaust for Chasing/Escaping or even Heal if you are on low Life.