This is my first guide on MobaFire,hope you guys enjoy :D
Just for some ppl,i am not saying this build is perfect,it's just what i liked,and worked.If you have any opinions you can post them in the comment section ^^

Usually i am the agrresive type,but some people prefer mr over ability,if you feel better with mr then you can change it however you like.

Again,i am the glass cannon type,that is why my masteries have a lot of damage

The first skill should always be q,since Frostbite doesn t deal so much damage at level 1,and its better if the target is frosted,never use it if not,except in some cases that would secure a kill or something like that.The first skill to max should always be frost bite.Some may ask why frost bite over Flash frost,The answer is simple,even though flash frost can deal double damage too and stun,frostbite has a waaay lower cd.
The wall is mostly for utility,so its good at level 1 too
Max ulti whenever possible

Anivia is one of the slowest casters,so the flash is rlly important
Ignite is a very good summoner spell on any champ,and can be used to secure a kill

Pros: Cons:
-TONS OF DAMAGE!:D -Really squishy
-One of the best farmers -One of the most mana hungry champs
-Has a stun,2 slows,1 utility spell -Pretty slow

After getting blue and chalice the farming is no problem.Just r and you get 6 creeps,in some cases to clear faster you can r then send a q,and explode on the creeps you wanna kill faster.
Till level 6 and getting blue/chalice you should try to last hit as much as possible for a early chalice,though its pretty hard with a slow animation its not imppossible.
P.S:If it;s hard for you to lasthit you can put 3 points in damage in the offensive part of masteries

Early game you should try to harrass as much as possible,but not trying to get a kill.Just q,then explode q and after that use frost bite,usually 1/4(sometimes 1/2) of the enemy hp if they don t have mr runes.
P.S;Getting the stun from Q is really important,not only it deals 2x damage,but that way the enemy won't move.
If you are almost dieing and they wanna dive,remember.its not bad,you have an beautiful egg ready :D

Mid game is really the part when you wanna rock,after getting tons of farms,you can just use your q,and if you get a stun just imidiate ulti +e and a wall just so they take more damage from ulti.

Teamfights is the part where you gotta positionate,and shut down thier adc,if you ever cought the adc solo just quick wall,stun and then ulti +e,he should have pretty low hp and maybe you can get the kill