(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.
![Rainbow Dark Dragon [BLRR-EN054] Ultra Rare](http://www.cardmerchanttakapuna.co.nz/cdn/shop/products/7ed5e0ce-27f2-5a57-8327-1d9b7eebb7d5.png?v=1698557477&width=1445)