As Selune practices tolerance, her only foe is Shar. This term is used loosely,
as unlike gods who seek to destory eachother, these sisters only seek to undo
the work of the other. A sibling feud turned into the feud of all time. Selune
and Shar, twin sisters, once worked together to create heavenly bodies (Which
included Chauntea.) They disagreed on what to do with these things they had
made. As all siblings do, the two bickered on what to do with what they had
created. When Selune brought forth a plane of fire and ignited it to warm
Chauntea, Shar became enraged bringing her to attempt to undo her sisters
doings. Turning her to try to erase all light Selune made. Thus the sisters
have bickered since. Selune trying to shed light, Shar trying to swallow it
with darkness.