CommentStreams:9ecbda906c90efe078aa6cd76de56fc5

You can deduct from the phrasing that the bonus lasts until the next DM spell is casted, so it grants that bonus to any Reflects before you cast a DM spell. And like you said, Reflect isnt a spell so it won’t remove the stacks either. I clarified this at the end of the description recently to help, thanks for the feedback