Name: Gravesoil Sediment Golem
Rank: 4
Attribute: Earth
Monster Type: Rock/Xyz/Effect
Effect: 
2 Level 4 monsters
If this monster has a Earth Attribute monster as a Xyz material it gains the following effect
Once per turn you can detach one Xyz material from this card then change this card to Attack position to special summon one Level 4 Earth attribute monster from your graveyard.
ATK/DEF: 0 / 2800


and because I like this card, have a description of appearance.

[i]A hulking mass of crumbling dirt and bones from a nearby crypt, it moves with unseen force. It is the unmovable unstoppable carrier of the earth. Fear what happens if the dirt crumbles away to reveal what the grave that had become truely mobile contained.[/i]