Thanks for giving it a shot!
The dialogue has a minimal effect on the next fight. It really only determines whether you'll be fighting more enemies or not. We wanted there to be more weight to your decisions but frankly ran out of time.
We made a decision to only let the player have one active "d20" at a time to prevent the game being an easy spam-click-to-win, but it did perhaps bump the difficulty a bit too much.
Thank you for the constructive feedback!