I'm having an argument with the DM as usual. My UA Artificer (2019) reached level 8, and I have a new set of goodies. I want to dual-wield maces.
Looking at the Arcane Armament feature I received at level 5:
Starting at 5th level, you can attack twice, rather than once, whenever you take the Attack action on your turn, but one of the attacks must be made with a magic weapon, the magic of which you use to propel the attack.
When you take the Attack action and attack with a light melee weapon that you’re holding in one hand, you can use a bonus action to attack with a different light melee weapon that you’re holding in the other hand. You don’t add your ability modifier to the damage of the bonus attack, unless that modifier is negative.
The description of the Radiant Weapon infusion says:
This magic weapon grants a +1 bonus to attack and damage rolls made with it. While holding it, the wielder can take a bonus action to cause it to shed bright light in a 30-foot radius and dim light for an additional 30 feet. The wielder can extinguish the light as a bonus action.
As a reaction immediately after being hit by a melee attack, the wielder can cause the attacker to be blinded until the end of the attacker’s next turn, unless the attacker succeeds on a Constitution saving throw against your spell save DC. Once used, this reaction can’t be used again until the wielder finishes a short or long rest.
The new arcane weapon artificer spell description says:
You channel arcane energy into one simple or martial weapon you’re holding, and choose one damage type: acid, cold, fire, lightning, poison, or thunder. Until the spell ends, you deal an extra 1d6 damage of the chosen type to any target you hit with the weapon. If the weapon isn’t magical, it becomes a magic weapon for the spell’s duration.
As a bonus action, you can change the damage type, choosing from the options above.
If I were to use my Radiant Weapon infusion on one weapon, and the arcane weapon spell on the other, would I benefit from Arcane Armament twice on my turn, equaling 4 attacks?
The DM is stating that Arcane Armament is only triggered once: only the Mace in the primary hand causes it, and the other mace (regardless of being magical) does not count, as it is a bonus action - totaling 3 hits, not 4. Is this true, as I see it being triggered once per use of a magic weapon?