The Scrolls of Semhtep follow all the rules for Dispel Scrolls, except that you may attempt use one in each of the opposing player's Magic phases. After the first time you have used one, roll a D6; on a 2+ you can use a scroll the next turn as well. The second time you use one, you need to roll a 3+, the third time a 4+ and so on. A roll of 6 always succeeds.