Weapon Finesse (Mythic)
You’re an expert with weapons that rely on your agility.
Prerequisite: Weapon Finesse.
Benefit: When using Weapon Finesse, you may also use your Dexterity modifier instead of your Strength modifier on your damage rolls. If you carry a shield, its armor check penalty doesn’t apply to either the attack rolls or the damage rolls.
Source: Mythic Adventures, p. 77