Personalized Gear

You tend to customize your weapons, armor, tools, and other equipment to your particular tastes and physiology. You gain the following benefits:

• Any mundane (non-Superscience) carried equipment, weapon, or armor you take with you for 7 days or more counts as Personalized to you, unless you choose not to alter it.
• Any other creatures attempting to use items Personalized to you make skill and attack rolls with disadvantage when doing so.
• Upon any mundane weapon becoming Personalized to you, if it already deals a damage type other than bludgeoning, piercing, or slashing you may change its default damage type to another of your choosing.

Example: You could personalize your laser rifle dealing fire damage so that it now deals electrical damage.