Right, all scrolls and wands cast at level 5. Therefore, base magic scrolls (and wands) at B5, expert scrolls at E5, master scrolls at "M5" even if you cannot achieve any "M5" by yourself and grandmaster scrolls at "G5" - the same. Note that no spell subtracts 7 or 10 when calculating its power. It's always: "If you are a master, etc., then the spell does the following times your experience level" so that M5 or G5 is fully acceptable for evaluating the spell effect.But this is not all, some scrolls look like base scrolls and they aren't. For example Fire Aura is a master scroll in fact.
