Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Heal: early game you can get caught out by other melee dps champs always helps to get away to your turret. Heal is also great for when your low on health while using your ult makes sure you get the best damage.
Flash: Well its obvious being at low health most the game you can be focused and caught out always great to have a back up plan :P
Harass with ice blast and get those minion kills farm farm farm.
once you get to level 6 you should be able to get a few kills by using your ice blast+ ult.
Stick with someone who does alot of dps eg. xin as his disable/damage will make best use of your damage and slow.
once you got all your items you can tank alot of damage use this to get into middle of team fights to use ya ult. you will kill the weaker champs and your team can pick off the tanks. A little tip while defending stand behind the turret and when they attack ice blast and ult should be a cert kill.
let me know what ya think.
Have fun =D