RGilthanas has a post on the offi­cial LotRO forums about an encounter with “The Swamped One”. This creepy, violet-colored crea­ture is both Elite and Level 60 and was (under­stand­ably) pretty much imper­vi­ous to all of RGilthanas’s Level 51 abilities.

It turns out that The Swamped One is actu­ally a spe­cial mob for the War­den’s class quests. He’s sup­posed to spawn in the Foun­da­tions of Stone in Moria, but appar­ently has been pop­ping up else­where. It might be a bit of fun to take him out if you’re capa­ble, but every­one else should just avoid him entirely.

Patience says as dev looked into this and said the fol­low­ing:

The logic gov­ern­ing his spawn­ing was flawed, result­ing in some rather unfair behav­ior towards low level char­ac­ters. I’ve made and sub­mit­ted fixes for this that will go in the next build inter­nally and will ulti­mately end up on the live worlds.

Until then, that place is evil, don’t go near it =)

Should be fixed soon. In the mean­time, I thought it was pretty amus­ing.