黒竜の怒号 Kokuryuu no Togou (Dark Dragon’s Bellow)
Normal Trap Card
[Requirement] You can activate if you control a face-up “Red-Eyes Black Dragon” when your opponent Tribute Summons a monster in Attack Position.
[Effect] Choose 1 Spell Card in your Graveyard and place it on top of the Deck. Then, choose 1 face-up “Red-Eyes Black Dragon” you control, it gains 700 ATK/DEF until the end of the turn.

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