New customization options so mythic skin upgrades can be used with any character/gun. Being able to mix and match tracers from one mythic gun skin with the kill effect from another on a none mythic skin would be a great upgrade to the games already amazing customization options for skins and guns. For a more specific example I would love to be able to use the kill effect of the mythic Astra guns on the mythic Highroller goliath skin.