are hugeass sticks with swords on the end of them. It's hard enough to wield one, forget about making it rain them. I was doing some thinking though:
Huge amount of blood very high up+frozen blood blades=rain of frozen blood blades

While I was thinking, line 'pyschopath with a heart of gold' kept popping up. Maybe that could something Yua calls Gaara, perhaps after he refers to himself as that.