|Hair color||Grey and white (fur)|
|Abilities|| Corrosive gas|
|First appearance||"Riddle of the Sphinx" (only appearance)|
|Images | Quotes|
The Sphinx is a giant beast with two heads which can breathe gas and rust metal which makes Rex's machines half useless. The beast was buried in the ancient Sphinx monument. Rex once thought it was just a sculpture, while Gharun Set revealed that it was a tomb, the resting place of his steed. Using his staff, Gharun Set destroyed the monument and summoned the Sphinx. Later, after their battle with Rex, Sphinx fell down from a building when its nanites were dying. It soon became dust.
- 304. "Riddle of the Sphinx"