Each shard was female, had long blue hair and shining, pearly white skin. They could display or dismiss their wings as they desired.
Shards were sent by the goddess to show her favor or give aid to mortals.
Shards could also be summoned by Selûne's church in the sacred ritual of the Conjuring of the Second Moon, enacted only during Shieldmeet. The priests could have the shards do their bidding, usually to battle the minions of Selûne's archnemesis and twin, Shar. However, the shards always took one mortal priestess to join their number before departing the world.