Lore3 Level 5 DARK monsters
If this monster is Summoned using a "Rank-Up-Magic" card, you can place 1 "Rank-Up-Magic" card from your Deck or Graveyard on top of your Deck. "CXyz" and "Number C" monsters you control gain an additional attack during the turn they are Summoned. If "Dark Rebellion Xyz Dragon" is attached to this card as Xyz Material, it gains the following effect:
● You can detach 1 Xyz Material from this card to target the monster your opponent controls with the lowest ATK: Destroy that target, then increase this monster's ATK by the ATK of the destroyed monster.