Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Anivia makes good use of her passive in this build. she can play agrassifly or go farming 2 play deathly late game. her part tank mastery's and items wil make her less likely 2 die, olos her great mana wil give her a long stamina 2 help (dps or dmg) team mates 2 push.
she is on her best late game after she got lich bane she wil be able 2 kill olmost evry1, aspacialy with her team.
Have Fun and good luck, ceep in mind 2 "ceep it cool"