just a build i did good with mana is essential and you want to spam your spells in order to get max damage for you and your minions. i build damage first and then comes the tank items because his minions do most damage and i wanted him to do some as well.

for masteries i was just trying to get some mana regain cause he loses it quickly throughout the game be sure to get blue and red buff to be one great dps off-tank.

when your in team fights remeber you have your ulti right with you so if a team mate looks squishy or is about to die pop that ulti on them and have the greater advantage of a teammate reviving instantly.

w is a good to farm minions but if you have blue buff spam all your skills at minions because it finishes the job quicker