Вот вам для сравнения:
Код
Crescendo Sword
With a tremendous roar, you swing your blade over your head
and make lunging strikes at all nearby enemies. At the end of the
flurry, you regain some of your power.
Daily ✦ Martial, Weapon
Standard Action Close burst 1
Requirement: You must be wielding a light blade or a heavy
blade (not a polearm).
Target: Each enemy in burst you can see
Attack: Strength vs. AC
Hit: 2[W] + Strength modifier damage.
Effect: If you hit at least one of your enemies, you regain one
daily power you have already used. If you miss all enemies,
you regain one encounter power you have already used.
Он не reliable, но в нем четко отмечено, что at least one of your enemies - хотя бы одного. В reliable не отмечено, значит промазать надо по всем.