[RPG] Can a dragonborn use his breath weapon as a weapon attack if he is hasted

attackbreath-weapondnd-5edragonbornmagic-items

Let's say im a level 5 fighter dragonborn, and I have the potion of haste. Then I have one extra attack, action surge, and a breath weapon. Under the description of the potion of haste, it says you can take one additional action, and take the attack action if you only make 1 weapon attack, but does fire breath count as a weapon attack?

Specifically, can I first drink the potion as a bonus action, then use my action to attack twice, then use action surge to attack twice more, then use fire breath as a third action allowed by the potion of haste?

Best Answer

Fire Breath is not a valid use of Haste

Haste specifically says...

That action can be used only to take the Attack (one weapon attack only), Dash, Disengage, Hide, or Use an Object action.

Source

The Dragonborn Race's breath weapon says...

You can use your action to exhale destructive energy.

Source

Thus, to use your Breath Weapon, you are taking the "Use Breath Weapon" Action.

"Use Breath Weapon" is a separate Action from the "Attack" Action. The Attack Action is...

With this action, you make one melee or ranged attack.

Certain features, such as the Extra Attack feature of the fighter, allow you to make more than one attack with this action.

Source

This is the sort of Attack that Haste allows you to use...with the caveat that you only get to make 1 attack (cannot use Multiattack)

I can understand where the confusion comes from, as the Dragonborn's Breath Attack is called a "Breath Weapon," but that is a coincidence of naming.