Darkness Returns

[REQUIREMENT] Can be activated from turn 2 onward by revealing 1 "Dragon Knight of Darkness", "Evil Dragon of Darkness", or "Shadowbringer Dragon" from your hand if all of the Level 7 or higher monsters in your constructed Deck are LIGHT or DARK Attribute Dragon Type with 2500 or 2000 ATK. [EFFECT] Reveal 1 DARK Attribute High Dragon Type monster from your Extra Deck. Then, add 1 monster with a card name listed on it as material from your Deck or Graveyard to your hand. Then, you can send 1 card from your hand to the Graveyard. If you do, add 1 "Fusion" from your Deck or Graveyard to your hand.