In the Player's Handbook for DND 5e some of the maneuvers (distracting, disarming, menancing strike etc.) for the battlemaster fighter have this writen at the start:
When you hit a creature with a weapon attack, you can expend one superiority die to [...] (frighten, disarm, distract) [...] You add the superiority die to the attack’s damage roll [...]
I interpret this as meaning that you can decide to make a maneuver of this type after you have already rolled your attack hit, and that means you could potentially spare the superiority dice for attacks when you rolled a 20 and crit. Am I correct in this interpretation?
