Sword of Icy Shards

You lift your middle and forefinger up and a piece of ice is lifted into the air. Putting your hands together in front of the ice you move your hands apart the ice stretches with it. You reach your hand out and the it forms into an icy sword. You throw it at your target(s) and snap your fingers, it breaks into 3 icicles, you whistle and they shatter showering your target(s) with shards of ice tearing into their flesh and freezing their soul.