"I have heard enough of his lies!"
- Guardian and Alarak(src)
Four guardians of Ma'lash exist through the map, behind Tal'darim encampments. The player should move out in force to defeat them. An achievement for "Steps of the Rite" requires the player to defeat the guardians without destroying any other Tal'darim forces. To achieve this, the player can move air units around the edges of the map and attack the shrines from behind. Not every guardian is vulnerable this way, but it makes reaching them easier.
While the guardians can only attack air units, they are able to freely use an ability similar to the phoenix's Graviton Beam, levitating ground units into the air for them to attack. Unlike the phoenix however, the guardians are able to use their Graviton Beams on Massive units, so archons are still vulnerable.
The shrines and the units on top of them are separate units in the map editor. The actual "Guardian of Ma'lash" refers only to the shrines themselves, which have no attack. The unit on top of the shrines is an ascendant given a normal attack and its unit model raised into the air. These ascendants are invincible and unclickable in the mission, and they are scripted to die when the shrines beneath them die.