This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
It could be tied to per-rest. Similar to the fighters’ weapon mastery in OneDnD, switching stances could be tied to a long or short rest instead. Just call it something else, like katas. (Yeah, yeah, they are trying to move the monk away from the strictly Eastern roots, but they could give this as a flavor option.) You drill one of the katas in the morning and then you can use the basic ability associated with it for free:
Yeah, but that’s way less fun than the original. The original invites making tactical decisions every round.