Cannot be Normal Summoned or Set. Must be Special Summoned (from your hand) by banishing 7 DARK monsters with different names from your Graveyard, and cannot be Special Summoned by other ways. You can banish all other DARK monsters you control and from your Graveyard; this card gains 500 ATK for each card banished this way.
How to Get
Banishes from field for cost / Banishes from your field / Banishes from Graveyard for cost / Banishes from your Graveyard
Cannot Normal Summon / Cannot Set / Nomi / Special Summons itself from your hand