Lol. I don't still see why it would take 30 mins. That's 1,800 secs. Which means it took a lot of turns to finish that duel. Meaning, it was not entirely the SB player's fault that it took so long. Remember you are only given additional 20 secs per turn if you use up your time the previous turn so the SB user would have needed to hurry up in the succeeding turns.