When I take this feat, I can treat one kind of light or one-handed slashing weapon as a one-handed piercing melee weapon and I can add your Dexterity modifier instead of your Strength modifier to that weapon's damage.
I thought I could add my Dexterity modifier instead of my Strength modifier to one-handed piercing melee weapon's damage.
Is this feat apply to one kind of light or one-handed slashing weapon only?