With the knockdown fusion, a weapon disrupts a target’s center of gravity. The weapon gains the knockdown critical hit effect (see page 182). If the weapon already has a critical hit effect, when you score a critical hit, you can apply either the weapon’s normal critical hit effect or the knockdown effect. Only weapons that deal bludgeoning damage can benefit from this fusion.

For your debilitating trick, you can attempt to knock the target out in one blow. The target must succeed at a Fortitude save or fall unconscious for 1 minute. Once you’ve used this ability to attempt to knock a creature out, that creature is immune to your knockout shot for 24 hours. You must have the staggering shot and stunning shot exploits to learn this exploit.