Power Call of the Beast change

[MacMathan]

I wanted to get opinions about changing Call of the Beast Target: Enemies only. It seems like the simplest change but I do not want to create an over powered at-will.

Call of the Beast as written is a bit strange in that it could be read to require someone in your party to attack an ally or himself or take damage if they were hit by the spell.

See Below:

(Mods-I am not sure if this is posting to much from a source please edit it with my apologies if it is)

Call of the Beast Druid Attack 1
You draw forth the savagery that dwells in every creature,
compelling your enemies to fight without forethought or plan.
At-Will ✦ Charm, Implement, Primal, Psychic
Standard Action Area burst 1 within 10 squares
Target: Each creature in burst
Attack: Wisdom vs. Will
Hit: The target can’t gain combat advantage until the end
of your next turn. In addition, on its next turn the target
takes psychic damage equal to 5 + your Wisdom modifier
when it makes any attack that doesn’t include your
ally nearest to it as a target.
Level 21: 10 + Wisdom modifier psychic damage.