Anubis' God Power summons a nest of Serpents to defend an area. The animals are not under your control and will not leave the area in which they are summoned, even if chasing fleeing enemies. They last until slain, however. Serpents are not very strong against Villagers and won't attack buildings.

To summon the serpents, left click on the Plague of Serpents icon, then left click anywhere you have line of sight. Because you cannot give commands to the Serpents, it is important to place them where they will do the most damage or intercept the most attackers. If used over the water, Sea Snakes are summoned instead. They won't attack Fishing Ships, but will attack warships.