This champion is amazingly strong, give her a try. The molten shield stacking to begin with will surprise your enemies with such force they will be constantly dying. My first ever game trying this build I achieved 29 kills, needless to say we won. Tibbers on top of your molten shield deals an absolutely insane amount of damage, with the added benefit of Annies HUGE range and passive stuns, the enemies will be dropping all over the place. My first game I achieved 3 triple kills.

Always upgrade Molten shield, get your bezerker greaves early, i stacked AS runes to help at the beginning. it may seem slow at first, but seriously by level 4/5 you will be killing people instantly, and great survivability early game using the molten shield. Tibbers isn¨t needed but he is an instant guaranteed triple kill! Please post your comments on this build!

Pros

Crazy damage
Insane range
One of the best last hitting champs
Super speed with all the zeal stacks
Crazy area damage with molten shield

Cons

None that I can see

Please check out the screenshots
http://img830.imageshack.us/i/anniehilator.jpg/
http://img96.imageshack.us/i/anniehilator2.jpg/

My first game using this build.