In AP editor, if "Fixed Damage" is 0, weapon's attack value is used in damage/heal calculation. (ex Rush, Beat down).
if "Fixed Damge" is not 0, weapon's attack value is not used in damage/heal calculation (ex Air Render) and "Fixed Damage" is used instead of weapon's attack value.
if "Fixed Damge" is not 0, weapon's attack value is not used in damage/heal calculation (ex Air Render) and "Fixed Damage" is used instead of weapon's attack value.