Rainbow Dark Dragon is a Secret Rare Effect Monster card from Yu-Gi-Oh! (Phantom Darkness, PTDN). Current market price: $0.07.
Secret Rare
Phantom Darkness (PTDN)
Card Text
(This card is always treated as an "Ultimate Crystal" card.)
Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by banishing 7 DARK monsters with different names from your GY. You can banish all other DARK monsters from your field and GY; this card gains 500 ATK for each card banished this way.
