Explosive Saw Crossbow
find in category Universal Weapon
left click to fire a saw blade，rotating and flying，after hit something，it would explode.
right click to fire a saw blade in your aim position，watch it rotating，and then right click to detonate it.
左键发射旋转飞行的锯片，碰撞爆炸，右键在地上打出旋转的锯片，再按右键引爆（这个功能主要可以观察一直转动的锯片）
