Target: one enemy you can see within this power's range
Effect: "When you make a melee attack against the target and the target is the only enemy adjacent to you, you make two attack rolls and use either result. This effect lasts until the end of the encounter or until the target drops to 0 hit points, at which point you regain the use of this power.
"If another effect lets you roll twice and use the higher result when making an attack roll, this power has no effect on that attack. If an effect forces you to roll twice and use the lower result when making an attack roll, this power has no effect on that attack either.