Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by banishing 5 or more cards from your hand, field, and/or Extra Deck, face-down, and cannot be Special Sumoned by other ways. This gains 100 ATK and DEF for each face-down banished card. While this card is face-up on the field, it cannot be Tributed, or be used as a Fusion, Synchro, or Xyz Material for a Summon. Once per turn, at the start of the Damage Step, if this card battles an opponent's monster: You can banish that opponent's monster, face-down.