Ice Magic

Ice Powers are the abilities possessed by the Ice King. They were stolen by him, assumably from another Wizard, and were sealed in his crown. Consequently, he loses his Ice Powers if his crown is removed or lost. The main application of Ice King's powers are the large icy lightning bolts he shoots at his opponents. He can also manipulate the water in the air to create sheilds, and can even create torrents of icy weather at will. As seen in The Eyes, the Ice King is also able to manipulate any ice in the area telepathicly. Another common use of his Ice Powers is the Ice King's ability to fly. This is done through the animation of his beard, which act as wings. In the episode Loyalty to the King, it is revealed that if his beard is shaved off, he loses his power to fly.

Fridjitzu
Fridjitzu is an extention of the Ice King's powers. Where as his main attacks are generally broad and unfocused, the techniques held in the Ice Ninja manual Ninjas of the Ice: The Art of Fridjitzu enable the Ice King to use more refined attacks, and even create weapons out of Ice. He generally keeps this range of his abilities a secret and rarely uses it in battle, and therefore lacks any sufficient skill in Fridjitzu.

Trivia

 * Ice King also has a ability called Wizard Eyes that allows him to see bizarre and disturbing things that don't make sense. It is unknown if he can use this without his crown.
 * The Ice King also posesses a "Witching Eye" and "Ghost Pouch", although it is unknown if these things are connected to his Ice Powers or another form of Wizardry.
 * The Witching Eye may be an allusion to the "Evil Eye," an italian superstition popularized by the "Devil Horns" hand gesture, made famous by Heavy Metal vocalist Ronnie James Dio.