Plaguescarred
Hero
My interpretations of the rules as written is that until when you make the extra attack of the Light Property, it's a Bonus Action, which can't forgo or replace in this fashion.
Nick Mastery modifies the extra attack of the Light property with a specific weapon and timing. You need a different Light weapon AND when you make it, can shift it as part of the Attack Action.
So my understanding is that an Eldritch Knight, a Valor Bard, a Beast Master or an Acid vial thrower can't use the extra attack of the Light property that Nick Mastery modifies as an attack to be replaced.
- When you make the extra attack of the Light property, you can make it as part of the Attack Action instead of a Bonus Action, which means you can't forgo or replace it.
- Meaning:
- When you don't make the extra attack of the Light property, you can't make it as part of the Attack Action or Bonus Action.
Nick Mastery modifies the extra attack of the Light property with a specific weapon and timing. You need a different Light weapon AND when you make it, can shift it as part of the Attack Action.
So my understanding is that an Eldritch Knight, a Valor Bard, a Beast Master or an Acid vial thrower can't use the extra attack of the Light property that Nick Mastery modifies as an attack to be replaced.

