in the books of sorrow it was mentioned when oryx took down the quadria i believe the blade mind that it managed to simulate oryx and encapsulate it in a seperate timeline he gave that simulation of himself over to savathun to do what she wished. it's my belief the mind did this to try and find a way to kill oryx through trial and error but after taking away everything his tablets his throne his worm it failed that was in the actual lore that it simulated a seemingly powerless oryx so who knows.