Persistent PetitionersPersistent Petitioners are absolutely incredible at milling
Ban/unban news has a more immediate and extreme impact than seasonal trends because its less predictable and directly changes card legality
He doesnt just take away your creatures, though, because he also destroys a creature each time he attacks
#2 -- Misty's Seadra (Holo, Prerelease) The Misty's Seadra Prerelease Holo is one of the most unique and historically significant cards in the entire WOTC era, a piece that carries value driven by provenance, rarity, and historical importance rather than pure artwork or competitive power
That said, The One Ring is held back by a few factors, like its relatively high mana cost, so it's not always a straightforward addition to fast-paced Standard, Modern or Legacy decks where every bit of mana counts