Shadowblood Ridge
Finding just four copies of Reliquary Tower will offset the $5.00 spent on 546 other cards
Dragons of Tarkir gave us five newcomers (Dragonlord Silumgar, Dragonlord Atarka, etc.), Core Set 2019 gave us retrains of the originals (Arcades, the Strategist, Nicol Bolas, the Ravager), Strixhaven added five more as the namesakes of the different schools (Tanazir Quandrix, Beledros Witherbloom, etc.), and the five metal dragons from Baldur's Gate were also given the double creature type (Ancient Bronze Dragon, Ancient Copper Dragon, etc.)
At a rate of approximately 1:8 for Sets: Ixalan, Rivals of Ixalan, Dominaria, Core Set 2019, Guilds of Ravnica, Ravnica Allegiance, War of the Spark, Core Set 2020, Throne of Eldraine, Theros: Beyond Death, Ikoria: Lair of Behemoths, Core Set 2021, Strixhaven, Kamigawa: Neon Dynasty, Khans of Tarkir, Murders at Karlov Manor At a rate of approximately 1:8.4 for Sets: Magic: The GatheringFINAL FANTASY At a rate of approximately 1:8.1 for Sets: Magic: The Gathering | Marvels Spider-Man , Magic: The Gathering | Teenage Mutant Ninja Turtles At a rate of approximately 1:7.4 for Sets: Zendikar Rising, Kaldheim , Innistrad: Midnight Hunt, Innistrad: Crimson Vow
It is safe to say that many players find hexproof annoying, which is why Wizards has moved away from it a little and moved towards using ward instead
