Those later cards are the shadowed Unlimited prints
It would make more sense for such a terrifying fantasy artifact to have negative effects as well as positive, showing the true impact of the Dark Lord Sauron's corrupting influence
We buy cards that have a market value of $30+
I wouldnt play less than 4 because the more often you set back your opponent a turn, the more time you have to bolster your side of the field

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We do this by making combat a nightmare with a swathe of keyword lords, Minotaur abilities and Sethrons own skills