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.
-Squishy early game
-Cant Take Lots of Damage
Early game you are weak so just farm as much as you can and get ready for mid game
Mid game get as many kills as possible so you cant get ahead in items
Late game just stick with your group and give a lot of support
The ult can hop over any walls, so if your in trouble just use it and you will get away quickly enough so they cant catch up.
Early game harass with Null Sphere, it will gain you more ground and eventually kill them.