Anivia, The Cryopheonix

Flying
Echo+(During your upkeep, pay this card's casting cost +{1} for each blizzard counter on it.)
At the beginning of your upkeep, put a blizzard counter on Anivia.
Creatures your opponents control get -1/-1 for each blizzard counter on Anivia.
Whenever Anivia dies, put a 0/1 egg creature token onto the battlefield with {u}{u}{u}: Sacrifice this creature. Seach your graveyard for Anivia, and put it into your hand.