I think that for the snake, the name cobra would be fine. The scarab beetles are HUGE! I hink that they should be at least reduced to 1/3 size. They probably don't need very high HP, probably like 250, and a little bit of armor(because of the exoskeleton). They would probably be useful for swarming the enemies ranged attackers. I think that a sphynx should be a slow moving (100-150 move speed)creature about the size of a golem and would swipe at enemies with its powerful claw. Having a Jackal Guardian type unit would be cool, and it could be very tall and use a giant spear for its attack. I think there could be a Nile Farm which grows livestock and grain, and a nile hunt, which would hunt hippos and ducks.