Etheral Ethereal beings are insubstantial creatures which can move through solid objects. They therefore suffer no movement penalties for moving over difficult terrain or obstacles, or from other reductions to movement (such as the Anvil of Doom Rune of Water or the Pit of Shades spell).
They can move through building: just as easily,
but not through other units. They cannot, however, end their movement inside impassable terrain nor see through anything that would block the line of sight of normal units. Ethereal creatures block line of sight normally (the enemy cannot see through them).
Because they are insubstantial, they can't he harmed in combat except by attacks from magical weapons. Daemons or other Ethereal creatures, though they can be affected by spells as normal. Ethereal creatures can still he beaten in close combat and suffer extra wounds as a consequence because combat results are not wholly dependent upon casualties.
Swarm Swarms are modeled in multiples on a single 40x40nm base. This base is treated as if it were a single model with several Wounds and Attacks. A Bat Swarm base fights at lull Oro until it has taken 5 wounds then it is removed. Like all Swarms, Bat Swarms are Unbreakable and cannot he joined by characters.
