Annie is a very powerful AP champ. Many people consider her broken even though RIOT hasn't touched her in a very long time. Main think is she does a ton of damage (I like to call her an AP Assassin) and can burst people down quick. Not only does she do damage, every 5th spell is a stun.

I take Flash Ignite. This is good to finish off opponents and adds to her burst. It is also very good to pack Exhaust instead of Ignite. This allows you to slow the ADC and help you and your ADC to last longer. It's your choice, kill faster or survive longer. (YOU WIN BOTH WAYS)

Annie is very powerful. She can scare almost any champ just by charging her stun and running at the enemy team. She can burst a lot of champions, although a full support Annie can also get out a lot of stuns during a team fight allowing her team to win. Make sure to save your stun for the carries and use Summon: Tibbers on multiple people for the best result.

Make sure to poke a lot, but not waste mana for no reason

Use your flash as a gap closer, not just an escape

Don't be afraid, you may be squishy, but you have a lot of damage

Get as many stuns out as possible

Use your E in lane to charge stuns since it costs the least

Have fun, your an 8 year old girl and everyone is afraid