Ice Release: Snow Demon Technique

The user creates an ice clone, then has the clone create black ice weapons to attack the opponent with. Because the clone uses the Black Ice, the user is completely safe from it's normally detrimental effects. A weakness of the clone is that once the black ice begins to form on the clone, it starts to slow down, giving the opponent an opening to defeat it or retreat.

Trivia

 * Only the Yuki clan in Kirigakure know this technique.