Activate only if both a "Gravekeeper's" monster and "Necrovalley" are on the field. Neither player can Special Summon monsters, except "Gravekeeper's" monsters. If either a "Gravekeeper's" monster or "Necrovalley" is not on the field, destroy this card.
NM-Mint Unlimited - $0.25
Lightly Played Unlimited - $0.23
Moderately Played Unlimited - $0.20
Heavily Played Unlimited - $0.17
Damaged Unlimited - $0.13
NM-Mint 1st Edition - $0.40
Lightly Played 1st Edition - $0.40
Moderately Played 1st Edition - $0.30
Heavily Played 1st Edition - $0.30
Damaged 1st Edition - $0.20
NM-Mint Unlimited Non English - $0.25
Lightly Played Unlimited Non English - $0.23
Moderately Played Unlimited Non English - $0.20
Heavily Played Unlimited Non English - $0.17
Damaged Unlimited Non English - $0.13
NM-Mint 1st Edition Non English - $0.40
Lightly Played 1st Edition Non English - $0.40
Moderately Played 1st Edition Non English - $0.30
Heavily Played 1st Edition Non English - $0.30
Damaged 1st Edition Non English - $0.20