Rite of Spirit

Type         : Normal Trap Card

Desc.        :

Target 1 "Gravekeeper's" monster in your Graveyard; Special Summon that target. This card's activation and effect are unaffected by "Necrovalley".

Imperial Tombs of Necrovalley

Type         : Counter Trap Card

Desc.        :

When a Spell/Trap Card or monster effect is activated, if both "Necrovalley" and a "Gravekeeper's" monster are on the field: Negate the activation, and if you do, destroy that card. You can only activate 1 "Necrovalley Tomb" per turn.

Hidden Temples of Necrovalley

Type         : Continuous Spell Card

Desc.        :

Activate only if both "Necrovalley" and a "Gravekeeper's" monster are on the field. Neither player can Special Summon monsters, except "Gravekeeper's" monsters. Destroy this card unless both "Necrovalley" and a "Gravekeeper's" monster are on the field.

Gravekeeper's Servant

Type         : Continuous Spell Card

Desc.        :

Your opponent must send 1 card from the top of their Deck to the Graveyard to declare an attack.

Gravekeeper's Stele

Type         : Normal Spell Card

Desc.        :

Target 2 "Gravekeeper's" monsters in your Graveyard; add those targets to your hand. This effect cannot be negated by the effect of "Necrovalley".

Night Assailant

LV            : 3

Attribute : Dark

Type        : Fiend / Effect

ATK        : 200

DEF        : 500

Desc.        :

FLIP: Target 1 monster your opponent controls; destroy that target.

When this card is sent from the hand to the Graveyard: Target 1 Flip Effect Monster in your Graveyard, except this card; return that target to the hand.