Megalith Unformed – (Eternity Code) – (ETCO-EN070) – (Common)

Activate 1 of these effects;
● All monsters your opponent controls lose 500 ATK for each Ritual Monster on the field, until the end of this turn.
● Ritual Summon 1 “Megalith” Ritual Monster from your Deck in Defense Position, by Tributing monsters from your hand or field whose total Levels equal exactly twice its Level.