Dark Grepher [PTDN-EN000] Secret Rare Ritual Monster you can change 1 face-up

you can change 1 face-up Attack Position monster on your opponent''s side of the field to face-up Defense Position

You can only use this effect of “Harpie Channeler” once per turn

Whosoever breaks this seal will know infinite power

immediately after this effect resolves

when your opponent activates a monster effect: You can detach 1 Xyz Material from this card

Dark Grepher [PTDN-EN000] Secret Rare Ritual Monster you can change 1 face-upSet: Phantom Darkness Card type: Effect Monster Rarity: Secret Rare Attack: 1700 Defense: 1600 You can discard 1 Level 5 or higher DARK monster to Special Summon this card from your hand. Once per turn, you can discard 1 DARK monster to send 1 DARK monster from your Deck to the Graveyard.