The Dark Elf Warriors Guild. The Indigo Brotherhood has struck an alliance with the Crushbone Orcs, sending their Ambassador to Emperor Crush himself. It remains to be seen what will come of it.
The Guildhall of the Indigo Brotherhood can be found in the Neriak Commons. The guildmaster Seloxia Punox leads the guild in the opposition of The Emerald Warriors of Kelethin and the Steel Warriors of of Qeynos and Freeport. Dark Elf warriors also learn young to Hunt the Halfling Leatherfoot Raiders who have invaded their Nektulos Forest.
As a rule, you can gain faction with most of the Human and Elvish warrior guilds by annoying these folk.