You enhance your allies' attacks with energy that you know can devastate the foe you're fighting.

Encounter   ✦     Arcane
Minor Action      Close burst 1

Target: You and each ally in the burst

Effect: Choose acid, cold, fire, lightning, necrotic, radiant, or thunder. Until the end of your next turn, any untyped damage each target would deal with attacks is of the chosen type instead.

Published in Dragon Magazine 399.