Pretty straight forward. A bit of spell vamp, decent health, and a **** load of AP. Normally the game ends before I can get to last few items. Cause of rabadons first any team fight is yours. Usually ends up in other team surrendering.

Pros

- Very good at helping teammates, becauseof AP build
- Mass damage
- Hits anyone in range

Cons

- Very weak early-game
- First target normally
- People might chirp you for using her ;)

- Exhaust, to get multiple starcalls in.
- Flash to escape when targeted.

- An extra heal could help out, make you harder to kill
- I use ignite sometimes to hellp finish an enemy off.

Your trying to max out star call while at the same time keeping decent heals, and slowly maxing infuse to silence opponents, silence is very key in team fights.

- Some in offense, just to get that 15% magic penetration
- Rest in utility for mana regen and cooldown reduction.

- Doran's Ring for mana regen at start.
- Ionian Boots of Lucidity for cd reduction.
- Rabadons for AP at start.
- Hextech Revolver for spell vamp
- Rod of Ages for mana and hp.
- Will of ancients for spell vamp and AP
- Deathfire Grasp for AP and cd reduction.
- Rylai's for Health, of course.

- You should win every time with this build ;)
Have FUN!