The Tomb Guardian is a miniboss fought during the Sands of Inaros quest. It appears when the second Sacred Vessel is returned. When defeated, the Guardian will split into two smaller versions. This will repeat four more times, meaning there can be a maximum of 32 Tomb Guardians spawned.
- It resembles a larger version of one of Atlas's Rumblers, although sandstone colored and covered in sand.
- Despite being made of stone, it has Ferrite Armor and Cloned Flesh health, much like Grineer units.