Oath of Enmity Avenger Feature
You focus your wrath on a single foe, giving your attacks against
it extraordinary accuracy.
Encounter (Special) ✦ Divine
Minor Action Close burst 10
Target: One enemy you can see in burst
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.
If an effect lets you reroll an attack roll and you rolled
twice because of this power, you reroll both dice.
所以你说的方法是不行的。唯一可行的方法是诗人典范life singer，那个是miss了可以重投。
