From Kingdom Hearts Wiki: A world of information not accessible by Gummiship
Donald Blizzard (ドナルドブリザド, Donarudo Burizado?) is a technique that appears in Kingdom Hearts II and Kingdom Hearts III. It allows the user to cast Blizzard magic, unleashing a barrage of ice at the enemy, dealing Blizzard-type damage.
In Kingdom Hearts III, Donald Blizzard is an action ability exclusive to Donald Duck. It costs 2 AP to equip and 10 MP to use.
Learning Donald Blizzard
Kingdom Hearts II
Kingdom Hearts III