Try to get lanes, don't take mid. You should always be prepared to use your 1st skill as it is a pain in the *** for the enemies if timed correctly. Gank your enemies as often as you could and take some kills in the process.
By this time you must have kellen's dagger. Use your ult to initate the war, and take as many victims as possible (remember the most intimidating presence in the map is you, because your ulti is A BADASS ULTI!)
Try to make refresher as soon as possible because it will be very helpful for your team. One ulti is already annoying, but what if it became twice, you tell me troll.