Here’s that Black Luster Soldier support we were promised

Though hopefully there’s more to come.

RATE-JP025 混沌の使者 Konton no Shisha  (Envoy of Chaos)
DARK Warrior LV 4 / ATK 1500/ DEF 0
(1) During either player’s Battle Phase: You can discard this card, then target 1 “Black Luster Soldier” monster or “Gaia The Fierce Knight” monster you control; it gains 1500 ATK until the end of this turn. This turn, any monster that battles it has its ATK become its original ATK during damage calculation only.
(2) During the End Phase, if this card is in your Graveyard: You can banish 1 LIGHT and 1 DARK monster from your Graveyard; add this card from your Graveyard to your hand.