I don't think they get quite as big as the rider wargs but they grow quite alot. It's very noticeable when comparing a newborn with one that is a few days old. No need to feed them or anything. Building more then one building can be a good idea if you want many.
Worker or marauder I think. I only ever used it once myself(buying from camps is easier then waiting for spawn most of the time).
Last edited by TheGreatest : 02-16-2012 at 03:41 PM.