52 cards where the mana cost is greater than or equal to {U/B} or the text includes “{u/b}”

Sunken Ruins (Double Masters #326)
Ashiok, Dream Render (War of the Spark #228)
Memory Plunder (Commander Legends: Battle for Baldur's Gate #849)
Gyruda, Doom of Depths (Ikoria: Lair of Behemoths #221)
Sygg, River Cutthroat (Zendikar Rising Commander #103)
Glen Elendra Liege (Double Masters 2022 #217)
Oona, Queen of the Fae (Zendikar Rising Commander #98)
Waterlogged Teachings // Inundated Archive (Modern Horizons 3 #261)
Waterlogged Teachings // Inundated Archive (Modern Horizons 3 #261)
Dimir Locket (Zendikar Rising Commander #111)
Nightveil Specter (Gatecrash #222)
Brokkos, Apex of Forever (Ikoria: Lair of Behemoths #179)
Connive // Concoct (Murders at Karlov Manor Commander #203)
Discovery // Dispersal (Ravnica: Clue Edition #187)
Lydia Frye (Assassin's Creed #60)
Indominus Rex, Alpha (Jurassic World Collection #14)
Cunning Nightbonder (Ikoria: Lair of Behemoths #219)
Evelyn, the Covetous (Streets of New Capenna #184)
Dire Undercurrents (Shadowmoor #159)
Inkfathom Infiltrator (Shadowmoor #167)
Toluz, Clever Conductor (Streets of New Capenna #228)
Kels, Fight Fixer (Jumpstart #15)
Covetous Urge (Throne of Eldraine #207)
Inkfathom Witch (New Capenna Commander #342)
Helm of the Ghastlord (Shadowmoor #166)
Deathcult Rogue (Gatecrash #218)
Shadow of Doubt (Ravnica: City of Guilds #253)
Dimir Strandcatcher (Ravnica: Clue Edition #30)
Flotsam // Jetsam (Murders at Karlov Manor #247)
Mind Drill Assailant (Bloomburrow #225)
Dream Salvage (Shadowmoor #160)
Ghastlord of Fugue (Shadowmoor #162)
Cemetery Puca (Shadowmoor #158)
Architects of Will (Archenemy #77)
Fate Transfer (Shadowmoor #161)
Dimir Guildmage (Ravnica: Clue Edition #186)
Oona's Gatewarden (Shadowmoor #173)
Coerced Confession (Gatecrash #217)
Scarscale Ritual (Shadowmoor #175)
Whisper Agent (Ravnica: Clue Edition #218)
Memory Sluice (Shadowmoor #170)
Faerie Snoop (Murders at Karlov Manor #203)
Lurking Informant (Ravnica: City of Guilds #249)
Wasp Lancer (Shadowmoor #179)
Gravelgill Duo (Shadowmoor #165)
River's Grasp (Shadowmoor #174)
Undercover Butler (Ravnica: Clue Edition #49)
Gravelgill Axeshark (Shadowmoor #164)
Merrow Grimeblotter (Shadowmoor #171)
Wanderbrine Rootcutters (Shadowmoor #178)
Torpor Dust (Shadowmoor #177)
Loch Korrigan (Shadowmoor #71)
A-Silver-Fur Master (Kamigawa: Neon Dynasty #A-236)

Though this query has ended, its relics still slumber in New Argive.