doctorhook
Legend
It's spelled "Duergar", and no, that seems unlikely at this point.Deurgar.
Whatever it is, I won't like it.
Duergar in 4E are a type of dwarven devil. Mortal, native to the world, and otherwise "natural" humanoids, just like other dwarves, but racially fiendish thanks to a long history of breeding with devils. Instead of Moradin, Duergar generally worship Asmodeus. Thematically, you can think of Duergar as a dwarven equivalent to Tieflings, except completely different in appearance, substantially more evil than the average Tiefling, and possessing the (devil) subtype. (The MM-style write-up for Duergar appears in H2, but will hopefully be reprinted in a real Monster Manual eventually.)
Why won't you like it, (whatever it is), Kzach? You don't like Angels? You don't like Changelings?