Complex sentence: He also held a sceptre in his hand indicating his rulership, with Cerberus, gatekeeper of the underworld, resting at his feet, and it also had what appeared to be a serpent at its base, fitting the Egyptian symbol of rulership, the uraeus.
Split into simpler sentences: He also held a sceptre in his hand indicating his rulership, with Cerberus, gatekeeper of the underworld, resting at his feet. The statue also had what appeared to be a serpent at its base, fitting the Egyptian symbol of rulership, the uraeus.