Blue-Eyes Abyss Dragon (MAMA-EN056) [Magnificent Mavens]

If this card is Special Summoned: You can add 1 Ritual Spell or 1 "Polymerization" from your Deck to your hand. During your End Phase: You can add 1 Level 8 or higher Dragon monster from your Deck to your hand. You can banish this card from your GY; all Level 8 or higher Dragon monsters you control gain 1000 ATK. You can only use each effect of "Blue-Eyes Abyss Dragon" once per turn, and can only activate them while "Blue-Eyes White Dragon" is on your field or in your GY.