But if they force him to a situation where he cant attack or make a move hes lost. I know this is not chess but if oryx is forced to escape to the other dimension where he can not directly influence the battle he would lose all his forces and the world would be gradually flood-a-fied and once it has he would stand no chance. remember if the flood make a gravemind they will all share eachothers knowledge and they obtain the knowledge of any person a flood takes over. So if a flood took over steven hawking for example they would all possess the same knowledge he does. Obviously steven is not alive in either universe its just an example