War Magic only allows a single attack even if you have Extra Attack. Extra Attack is a feature that only grants you more attacks specifically when you take the Attack Action: whenever you take the Attack action on your turn.
Does extra attack include bonus action?
Extra attack is part of the attack action, not a seperate action. Bonus action is for bonus actions only – like attacking with left handed weapon, or rogue’s cunning action.
Is Firebolt a bonus action?
Firebolt. You hurl a mote of fire at a creature or object within range. Make a ranged spell attack against the target. You must use a bonus action on your turn to cast the spell, provided that you haven’t already taken a bonus action this turn.
When does an Eldritch Knight use the bonus action?
The bonus action comes after the cantrip, since using your action to cast a cantrip is what gives you the ability to make the weapon attack as a bonus action. a DM would break nothing in the system by allowing an Eldritch Knight to reverse the order of the cantrip and the weapon attack
When does an Eldritch Knight get War Magic?
A Fighter with the Eldritch Knight martial archetype gets the feature War magic at 7th level (and Improved War Magic at 18th level). The War Magic feature (PHB, p. 75) states:
How does extra attack work in war magic?
War Magic allows you to use a bonus action to make a weapon attack after you’ve previously used an action to cast a cantrip. The Attack action is a separate action. You could, however, use your action surge to do this. You would get two attacks (from the Attack action), then Action Surge and use your second action to cast a cantrip.
Can a Eldritch Knight reverse the Order of a cantrip?
That said, a DM would break nothing in the system by allowing an Eldritch Knight to reverse the order of the cantrip and the weapon attack. This contrasts with Jeremy Crawford’s prior ruling on the bonus action granted by that feature (and similar ones, such as Shield Master and Crossbow Expert).
