Simple Q&A D&D 4e Thread 3

[MwaO]

Q15 Does War Wizard of Cormyr's Arcane Fundamentals require a power that has a target line of "one creature" (e.g. Erupting Flare, Phantom Bolt), or can it apply to a power that has a target line like "one or two creatures" (e.g. Arc Lightning, Unraveling Dart)?

While you can choose to use those powers on one creature, at the time of the selection of the power, it needs to always be just one creature.