Grave Ohja is a Rare Effect Monster card from Yu-Gi-Oh! (Dark Revelation Volume 3, DR3). Current market price: $0.28.
Rare
Dark Revelation Volume 3 (DR3)
Card Text
While there is a face-down Defense Position monster(s) on your side of the field, no player can select this card as an attack target. Each time a monster on your side of the field is Flip Summoned, inflict 300 damage to your opponent.
