Black Luster Soldier - Envoy of the Beginning

Cannot be Normal Summoned/Set. This card can only be Special Summoned (from your hand) by banishing 1 LIGHT and 1 DARK monster from your GY. Once per turn, you can activate 1 of these effects: • Target 1 monster on the field; banish it. This card cannot attack the turn this effect is activated. • If this attacking card destroys an opponent's monster by battle: it can make a second attack in a row.