You can make an attack that does no damage, but entangles your target, so that he loses one shot from his current shot for each point of Outcome that you score. If you score an Outcome matching the target's Agility, he must be cut loose (any attack against a Dodge equal to your MartialArts will do) before he can do anything but dodge or try to cut himself loose.
You can renew you attack on the entangled victim, an if you get to attack him before his next action, you do so with a +3 bonus to Martial Arts.
If you let go of the weapon or use it for anything besides entangling this target, the effect ends.