This card is to Ritual Summon "Akasha, Queen of the Damned". You must also send Zombie-Type monsters whose total Level stars equal 7 or more from your Deck to the Graveyard. Those monsters are banished at your End Phase.
This card can only be Ritual Summoned by the Ritual Spell Card "Dead Merging". Once per turn you can send 1 Zombie-Type monster from either side of the field to the Graveyard to Special Summon 1 of your banished Zombie-Type monsters. This card cannot attack during the turn this effect is activated.