Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by having 25 or more cards in your GY. While your opponent has 25 or more cards in their GY, this card gains 2500 ATK/DEF.
Printings
Age of OverlordAGOV-EN000Quarter Century Secret Rare
Duelist NexusDUNE-EN000Quarter Century Secret Rare
Legacy of DestructionLEDE-EN000Quarter Century Secret Rare
Phantom NightmarePHNI-EN000Quarter Century Secret Rare
