How much dex does a pirate need

If you Use knuckles then you just need your dexterity to be at least around half of your str to use the weapon and equal to your dex to use armor. Or you can be dexless and not every put anything more than 20 into your dexterity. If you want to use guns than you can be strengthless or your out of luck, because for guns you NEED dexterity.