>>5203874This is also true. It was after all, the C'tan themselves that taught them how to fight the Old Ones and gave them their super tech.
Cryptek Szeras was the one leading the operations at the Pariah Nexus and is the very same one that aided the deceiver to fool the rest of his race into bio'transferrence. He is attempting to unravel the "mysteries of life" but is basically doomed to fail because he himself is not alive as you said.
Surprisingly when Trazyn captured his own teeny tiny starving shard of the Deceiver and fed it little bits of energy, it has ironically been truthful in its dealings like teaching him to traverse the great rift and offering to tell him the way how to close it.