In normal games it shoots out ice from the keyblade and slightly expands to damage enemies. If you manage to collect two or three Blizzard spells, you will be able to use Blizzara and Blizzaga, which are far more powerful then the original spell. In CoM, If you combine two or three using L + R, it will make Blizzara or Blizzaga which are more powerful than the normal spell. If you create a sleight with Blizzard in the front followed by two attack cards it will make the sleight Blizzard Raid. If you put Aero, Blizzard, and any magic card into a sleight you will use Homing Blizzara.
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