Originally posted by Captain REX
If you are talking about the normal Wargs, you just hack them up. If you are talking about the head Warg, you wait for it to stand on it's hind legs, exposing it's weak stomach. Hit it with an arrow/axe or your sword/axe/knives and then beat the sh*t out of it. Repeat until it's dead.
Same way I beat it. I just told you.