You can be so subtle not even the people you threaten are entirely sure you threatened them.

A weapon with the venomous fusion gains the injection weapon special property (see page 181). Only a single attack each day may benefit from this property, and you must announce before making an attack that it is an injection attack. Regardless of how many targets you can hit with a single attack from your weapon, only a single target of your choice is exposed to the drug, medicinal, or poison when you use the injection property in an attack. Only weapons that deal piercing or slashing damage can benefit from this fusion.

Your accuracy applies to all weapons with which you are proficient.

You gain a climb speed and a swim speed equal to your land speed. This speed is not increased by the quick movement class feature or improved quick movement exploit.

You know how to get full value out of weapon types your class doesn’t normally use.