|"Doesn't matter how many legs we've got, we'll still give you a kicking!"|
Linnorms are powerful monsters closely related to dragons. Like dragons, they also come in different breeds: forest, frost, land, grey, and so on. While none have wings, there's an inconsistency about how many legs they have: with some having just two, and others having four. Again, this could have something to do with real myth, as the linnorm (or "lindworm" to us English) can represent a variety of mythological dragons: whether wingless, legless, or bipedal.
My personal favourite is the Lambton Worm, a monster from County Durham that grew inside a well after being dumped there by a young fisherman. Eventually it started eating children and livestock, forcing the lord of the manor to appease it with vast offerings of milk. Numerous villagers died trying to slay the beast, until at last it fell to the young fisherman who caught it - now a knight back from the crusades. He fought it wearing a specialised suit of armour covered in sharpened spear heads, which cut the worm to ribbons as it coiled around him. Now that's a D&D plan if ever I've heard one!