She will still be weak very weak squishy as can be so early game and late game you'll be squishy. Use the ball to aid your harassment! It'll benefit so instead of being harassed alot you can keep your distance and cast with "the ball" and destroy your foes.

I use this set up so I can dominate lane, stay full of mana and help win team fights as a support/carry thus winning the game. I max Command Attack and Dissonance early game to kill as many minion waves as fast as possible to farm up and keep the other team from diving your tower and getting a quick turret. Command Protect late game because you're still extremely squishy. Don't want them getting free kills :O. Anytime I can I will get her ultimate because for team fights it can either 1. Bring them together for your teammates to be in range to use abilities to destroy them into nothingness 2. Seperate tanks from supports or carrys 3. Help you and a dieing teammate escape from their frontal assault or gank. Late game you won't need to worry about health or escapability because you will have Rylai's, Will of the Ancients and Arachangel's Staff to slow enemies, Re-gain life through spell vamp and you won't need to recall for mana. This makes you impossible to remove from lane just keep your distance and watch out for up coming ganks. The only bad thing to happen is if a enemy champion gets into range (melee dps) RUN! because if they have a stun, knock up, or other effect you're practically done if they have alot of damage packing.