Black Luster Soldier - Envoy of the Beginning (DR2-EN025) - Dark Revelation Volume 2 Unlimited

This card can only be Special Summoned by removing 1 LIGHT and 1 DARK monster in your Graveyard from play. Once during each of your turns, you can select and activate 1 of the following effects:
-Remove 1 monster on the field from play. If you activate this effect, this card cannot attack during this turn.
-If this card destroyed your opponent''s monster as a result of battle, it can attack once again in a row.