If the ATK of “Luminous Soldier” is reduced to 0 because of the effect of “Fairy Box” the ATK will increase by 500 points in the Damage Step if it is battling with a DARK monster.
If the attack target of “Luminous Soldier” is redirected to a DARK monster by the effect of “Dreamsprite” the ATK of “Luminous Soldier” will then increase by 500 points.