Annie is a very easy to learn and fun to play champion. Being only 1350 IP, she is a VERY good buy. Annie helps with playing fundamentals, such as farming, because you NEED to lasthit with Q. Annie was used very often at Dreamhack by Reginald, who plays a very mean Annie. Annie can simply melt carries and supports at level 6 so easily, and it's not even very hard to do.

Before I quit, I played Annie quite often, and had good results with her. 75% win ratio about, I think. This guide will teach you how to make her potential a reality.

Pros

-HUGE damage output with little AP
-Ult is a freaking bear
-Passive Stun
-AoE Stun

Cons

-Relatively Squishy

Magic pen reds- I get these for MR stackers
MP/5- This is good because sometimes you'll miss a CS with Disintegrate and mana will be back in no time
CDR- Your rotation will take less time to come off cooldown= more damage
Magic Pen Quints- Whatever you prefer
AP Quints- Whatever you prefer

Basic caster runes, 9/0/21 getting that MPen from the Offense tree.

Take these Spells
Flash Flash Tibbers is such a fast move if done right, it can give you team a free kill or ace. She is also very squishy.
Teleport Scary spell if used right. You can TP to a ward in bottom bush and TIBBERS!
Ignite True damage is not to be scoffed at.
Don't take these
Clarity You shouldn't have mana problems
Revive No global to jump back in fight
Rally You're AP
Smite I'm afraid you're not jungling

R>W=Q>E

This passive makes Annie who she is. I will have a section just about this skill later. It can be a AoE stun with Tibbers or Incinerate. If you happen to stun 3+ ppl, you ALWAYS win the teamfight.

This is REALLY good for farming. 99 damage at level one? Yes please. Mana back for last hitting? Yes please.
Huge amounts of damage in a cone. AoE stun potential. What not to love.
Less damage taken and a mini thornmail is always good.
This skill creates a bear doing massive damage (AoE) and becomes a tank with a sunfire cape. So fun to use and so fun to see health bars drop.

Pyromania is what makes or breaks a Annie player. Here I will teach you some fun tricks to use.

With your stun up, people fear you, allowing easy zoning. However, when at 4 stacks, they don't care. Well they should. E>Flash Tibbers>Q>W equals an EASY kill.

Your jungler ready to gank? Get your passive to 3 stacks. E>Flash Tibbers>Q stun>W. If your jungler runs in after you Flash Tibbers, it should be a kill.

Get your stun up. Have bot place a ward in the bush. Teleport to it, and Tibbers>W>Q for an easy kill and dragon.

Always keep this passive up in teamfights, because you can catch them off-guard by Flash Tibbers>W for easy ace or 3+ people dead.

Start out with a for some extra AP.

Early Game Goals

x2 Extra HP and AP is always good.
Catalyst the Protecter

This should be built into a Rod of Ages eventually

This is for your Rabadon's Deathcap

Mid Game Goals

x2
Catalyst the Protecter

Late Game Goals

Your last item will most likely be a Banshee's Veil.

Early game is where Annie is really strong. Due to her long auto-attack range, she can harrass like a boss. Farming is REALLY easy on her because of her Q and ability to zone opponents out. At level 6, make sure to see if you can get a E>Flash Tibbers kill or just TP and kill somebody.

However if you are laning against a strong laner like Malzahar, you should ask for a gank from you're jungler. E>Flash Tibbers>Q>W should be enough. Your Doran's Ringx2 should give you lots of damage already because of her burst capability. Support go bye bye.

Make sure if the opponent Kassadin or Malz jumps on you, to not be afraid, and burst them back. As Annie, you have to play with the mentality that you ALWAYS win 1v1s.

By now you should have your Rabadon's Deathcap and Void Staff to go with your catalyst. The extra AP from your Deathcap makes you do a heck load of damage. With no runes, assuming the other player has little to no MR, this is your damage. You will have 30 AP from your dorans. 140+70 with your Deathcap and Void Staff. 240 AP with the Rabadon's passive gives you 312 AP. Wow.
Your Flash Tibbers then W then Q does about this much at level 12:
325+0.7x312+285+0.8x312+250+0.75x312=1562 Damage. WOW!. Remember, a lot of it is AoE, so the other team should be scared. Ashe should be eliminated from teamfights. Right away, no questions asked.

There are two type teamfights. Poking the other team, and direct engagement. Poking is when Nidalee is able to toss spears for 10-15 seconds. Direct engagement is alistar, flash Qs into the whole team, and his team follows up. Check your team comp. Good pokers on your team means poking around.
Good Pokers
-Nidalee
-Ezreal
-Corki
Basically anyone with a long range missile.
If you have SUPER good initiation, then go in.
Good Intiators
-Alistar
-Ammumu
-Kennen
Anyone with a AoE CC basically. You count, although be careful before charging in with tibbers.

You should try to position yourself behind the wraith wall if you're fighting in mid lane. If you're going to be initiating most fights, then you should grab Zhonya's Hourglass. Combo the enemy squishy, and stun the team, and then have your team go in.

At low elo, you almost never go 50+ minutes as Annie. This is because either you carry hard, or you fail hard. Your items will help you a lot, as a endgame Annie should aim for






This is (140+70+80+80+100)x1.3=A whopping 611 AP.
Your Combo does: 450+0.7x611+285+0.8x611+250+0.75x611=2359.75 damage, but MR takes if down to about 1.9k~2k damage. Ashe and Soraka should be eliminated REALLY FAST.

There are many videos out there, that show the power of Annie.
http://www.youtube.com/watch?v=uy9SOorOZD8&feature=related is a low level video and outdated, but it shows the power of Annie (and Tibbers <3).
http://www.youtube.com/watch?v=zxR493mUm-8&feature=related
It is also outdated and at a lower level, but still it shows the burst of Annie so well.

I will try to upload user photos to show their scores.

Annie is a very bursty and relatively squishy champ that is a complete squishy melter. She can do this because some people misjudge her burst and think: Oh look annie, ima kill her. Boom dead.

Tibbers makes her all the more fun to play. Annie can bring you to a higher elo for Season 2 (which will be TOTALLY EPIC) and give you some easy IP.

This is SageAdvice, I hoped you enjoyed this guide as I spent much time working on it. Please leave feedback and comment.

Thanks,
SageAdvice