Henry
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Dogbrain said:So, then scrolls of this level are also 100% TOTALLY AND UTTERLY prohibited for the same reason, right?
Scrolls have a failure chance, whereas Potions and Scrolls have none.
However, Wands do NOT let non-spell-casters cast spells, unless they are rogues and you are talking Use Magic Device, in which case scrolls would apply for the same reason.
However, Potions are the more GREVIOUS abusers of this. Potion of Time Stop? Oh, heck no! We JUST got rid of potions of haste that gave extra partial actions in 3.5. A potion that allowed ANYONE to shotgun two to 5 extra actions in a round is a serious thing to try and balance, and I wouldn't want to have to give it to all the villains in order to balance it out, either. Might as well say whoever wins the Initiative roll, wins the combat.
A wand that allowed 50 wishes is NASTY! However, if some sucker of a wizard is willing to front the 250 THOUSAND experience points to charge the thing in the first place, then I'd allow it.

In summary, the biggest problem I see is one of having the devices overshadow the characters. Scrolls, not as big of an issue, because chances are whoever is casting from scroll could probably cast it without the scroll, anyway...