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<blockquote data-quote="Greenfield" data-source="post: 5929730" data-attributes="member: 6669384">I see a distinction between emulating a class ability and using that class ability.I don't care what the Rogue rolls on their UMD, they can't actually channel positive energy (or negative energy for that matter).&nbsp; Similarly, they may be able to fool a Wand or Staff by emulating a class with spell casting ability, but they don't actually have that ability no matter how well they roll.For such a maneuver to work on a Runestaff, they'd essentially have to trick the item into &quot;thinking&quot; that they had actually supplied the magical energy, and that isn't part of Use Magical Device, there is no &quot;Target DC&quot; that can be rolled to pull that one off.A Cleric might be able to fool the thing into thinking they were a Wizard with the right stats, and *might* even be able to fool it into accepting a Divine spell slot in place of an Arcane one (I'd probably need some convincing that that was possible), but that's about as far as it could stretch.Now if you want the Rogue to be able to power a Runestaff, could they burn a Scroll?&nbsp; That operates exactly as if you'd cast the spell yourself, so I could see using that as a way to supply the Arcane spell power, but now you're activating two magical devices in the same round, so it's still very questionable.In any case, the Runestaff isn't a Spell Trigger or Spell Completion item, so provisions for operating such things under UMD probably won't apply.</blockquote>

[QUOTE="Greenfield, post: 5929730, member: 6669384"] I see a distinction between emulating a class ability and using that class ability. I don't care what the Rogue rolls on their UMD, they can't actually channel positive energy (or negative energy for that matter). Similarly, they may be able to fool a Wand or Staff by emulating a class with spell casting ability, but they don't actually have that ability no matter how well they roll. For such a maneuver to work on a Runestaff, they'd essentially have to trick the item into "thinking" that they had actually supplied the magical energy, and that isn't part of Use Magical Device, there is no "Target DC" that can be rolled to pull that one off. A Cleric might be able to fool the thing into thinking they were a Wizard with the right stats, and *might* even be able to fool it into accepting a Divine spell slot in place of an Arcane one (I'd probably need some convincing that that was possible), but that's about as far as it could stretch. Now if you want the Rogue to be able to power a Runestaff, could they burn a Scroll? That operates exactly as if you'd cast the spell yourself, so I could see using that as a way to supply the Arcane spell power, but now you're activating two magical devices in the same round, so it's still very questionable. In any case, the Runestaff isn't a Spell Trigger or Spell Completion item, so provisions for operating such things under UMD probably won't apply. [/QUOTE]

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