Does the alternative effect of a wizard's Orb of Imposition [ddi], i.e. the extension of a duration, also only affect one creature?
A player is wondering if the Slow effect of Stone Blood [ddi] could be extended for all the creatures in the burst.
Effect: You can use your orb to gain one of the following two effects.
You can designate one creature you have cast a wizard spell upon that has an effect that lasts until the subject succeeds on a saving throw. That creature takes a penalty to its next saving throw against that effect equal to your Wisdom modifier.
Alternatively, you can choose to extend the duration of an effect created by a wizard at-will spell (such as cloud of daggers or ray of frost) that would otherwise end at the end of your current turn. The effect instead ends at the end of your next turn.
And Stone Blood:
At-Will Arcane, Implement, Transmutation
Standard Action Area burst 1 within 10 squares
Target: Each creature in the burst
Attack: Intelligence vs. Fortitude
Hit: 1d6 + Intelligence modifier damage, and the target is slowed until the end of your next turn.