No amount of reprints stops this card from trying to hit $10 again, but its a core part of token decks and aristocrat decks alike
For eight mana, Archetype of Endurance grants all your creatures, including itself, hexproof, but more importantly, it strips hexproof from your opponents and prevents them from gaining hexproof as long as it's in play
So someone heading to a list of bad cards might see a horrible card that kills your stuff today, but when it was made, it wasnt
That isnt to say that none of the other cards will end up being expensive or important in Eternal formats, but Im not going to spend a bunch of time going over the possible upside of, say, Custodi Lich
Umbra armor has no effect if the enchanted creature is put into a graveyard for any other reason, such as if it's sacrificed, if the "legend rule" applies to it, or if its toughness is 0 or less
All of this means youre never out of options