Because Gravekeepers need to have a rival.

[Althemia]

Pharaoh's Tombkeeper / DARK
** / Zombie Gemini / 0 ATK / 2000 DEF
This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it become an Effect Monster with this effect. - Once per turn: You can Tribute 1 "Pharaoh" monster you control; add 1 "Sarcophagus" card from your Deck to your hand, except "Gold Sarcophagus".

Pharaoh's Overseer / DARK
** / Zombie Effect / 900 ATK / 0 DEF
This card is treated as a Normal Monster while in the Graveyard. When this card is Normal Summoned: You can target 1 Level 2 Zombie-Type Normal Monster in your Graveyard; Special Summon it.

Pharoah's Descendant / DARK
** / Zombie Effect / 0 ATK / 0 DEF
This card is treated as a Normal Monster while in the Graveyard. While this card is face-up on the field, once per turn during your Main Phase, you can Normal Summon a Level 2 or lower Zombie-Type monster in addition to your Normal Summon or Set. (You can only gain this effect once per turn.) While you control a face-up "Spirit of the Pharaoh": You can Tribute this card; Normal Summon 1 Level 2 Zombie-Type monster from your Graveyard. This effect of "Pharaoh's Descendant" can only be activated once per turn.

Pharaoh's Spirit / DARK
** / Zombie Xyz / 1600 ATK / 1000 DEF
2 Level 2 Zombie-Type monsters
Must be Summoned by Xyz Summon and cannot be Summoned by other ways. Once per turn: You can detach 1 Xyz Material from this card; send 1 Level 3 or lower Zombie-Type monster from your Deck to the Graveyard. When this card is sent from the field to the Graveyard while you have a face-up "The First Sarcophagus": You can banish this card and 2 Level 2 Zombie-Type Normal Monsters from your Graveyard; activate 1 "The Second Sarcophagus" and "The Third Sarcophagus" from your Deck, ignoring the placement conditions.

The Lost Sarcophagus / Normal Spell
Banish 1 "The First Sarcophagus", "The Second Sarcophagus" and "The Third Sarcophagus" from your Graveyard; Special Summon 1 "Spirit of the Pharoah" from your Graveyard, ignoring the Summoning conditions. It cannot attack during this turn.

[StarKnightJacobs]

Holy cow, does this open up opportunities for this series. And they are highly compatible with one of my favorite cards of all time, Dark factory of mass production. Every one of these cards seem very balenced. And giving spirit of the Pharaoh another way to summon makes him much more valid. A+, good sir.

[Agro]

Would you rather Tombkeeper send the Sarcophagus card to the Graveyard or allow the Lost Sarcophagus to banish from the hand and field as well?