Discuss with the DM as always.
My Architect reached level 8 and I have a new set of goodies.
Looking at my Arcane Armament that I received at level 5.
Arcane Armament (UA, Revised Architect)
Starting at the 5th level, you can attack twice, instead of once, each time you perform the Attack action on your turn, but one of the attacks must be done with a magic weapon, the magic you use to boost the attack.
Now looking at the Dual Wielder feat
You master the fight with two weapons and you get the following benefits:
• You get a +1 AC bonus while wielding a separate melee weapon in each hand.
• You can use the fight with two weapons even when the melee weapons with one hand you wield are not light.
• You can draw or save two weapons with one hand when normally you could only draw or save one.
This would allow me to fight with two weapons
Fight with two weapons:
When you take the attack action and attack with a light melee weapon that you have in one hand, you can use an additional action to attack with a different light melee weapon that you have in the other hand. Do not add your skill modifier to the damage of the additional attack, unless that modifier is negative. (PHB, p. 195)
If I had to use my infusion of Radiant Weapon in one weapon, and the Arcane Weapon in the other, would this fire two Arcane Weapons by matching 4 attacks?
Prerequisite: eighth level architect
Object: a simple or martial weapon (requires tuning)
This magic weapon grants a +1 bonus to attack and damage rolls made with it. While holding it, the wearer can take additional action to make it shine bright light within a 30-foot radius and dim light for an additional 30 feet. The wearer can extinguish the light as an additional action.
In reaction immediately after being hit by a melee attack, the bearer may cause the attacker to be blinded until the end of the next turn of the attacker, unless the attacker succeeds in a save shot of the Constitution against your spell. , except DC. Once used, this reaction cannot be reused until the user finishes a short or long rest.
You channel the arcane energy into a simple or martial weapon that you have, and choose a type of damage: acid, cold, fire, lightning, poison or thunder. Until the spell ends, you deal 1d6 additional damage of the chosen type to any target you hit with the weapon. If the weapon is not magic, it becomes a magic weapon while the spell lasts.
As an additional action, you can change the type of damage, choosing from the above options.
The DM indicates that Arcane Armament is only activated once. Only the Mace in the primary hand causes it, and the other mace (regardless of being magical) does not count, since it is an additional action. Totaling 3 hits no 4.
Is this true, since I see that it is fired once by use of a magic weapon?