demiurge1138 said:
Elves come in three varieties. The mainstream elves in Khorvaire are mostly just people with pointy ears and really long lifespans. Many of them are tied to the Dragonmarked Houses. The Aerenal elves are eerie religious fanatics, worshipping their deathless ancestors and tattooing themselves with skull and bone motifs. The Valenar elves are rutheless, practicing a form of ancestor worship that encourages violent expansion - think Mongols.
One nuance that I really like about elves in Eberron is the way that ancestor worship, or at least reverence for the ancestors, is pervasive throughout their culture, though it takes different forms.
The Aereni preserve their best and wisest as deathless, and even keep the souls of worthy but lesser elves from Dolurrh by binding them to their mummified bodies as spirit idols. The Tairnadal seek to emulate their ancestors' great deeds (which is why the Tairnadal armies which carved Valenar out of Cyre during the Last War are so aggressive and expansionistic).
There's even a current of sentiment towards maintaining your ancestral traditions and beliefs running through the urban elves of Khorvaire - those elves who fled Aerenal when House Vol was brought down became the foundation for the modern-day Blood of Vol's powerbase when they settled in the heartlands of what would become Karrnath.
This appears in the half-elves of House Lyrandar, too - in
Dragonmarked, there's evidence that as a house the Lyrandar revere, in equal measure, both the Sovereign Host because of their (admittedly distant) human heritage
and their half-elven ancestors who founded House Lyrandar itself - just like the elves from which they're descended revere their ancestors.
I really have no time for the traditional Tolkienesque elves of other D&D settings - but all of the various elven cultures of Eberron are really very interesting.