Llewellyn
Most of the de-enabling for the Llewellyn so far has been focused on the publishing company than the deck itself, which might be painting with a broader brush than is called for. I've got some negative things to say about the deck itself.
I love Welsh mythology, and I was really excited when I heard about the concept for this deck. Then I looked at the cards, and that was enough to de-enable me. The minors are pure RWS. Sure, they're pretty, but the world just doesn't need another pretty RWS clone, especially in a deck where they could have done something interesting with the minors.
If you're into RWS clones, though, the majors are probably a bit far-fetched for you. Look at the World card, think about everything you know about the World card and everything you don't know about Welsh mythology, and give it a pass.