53 cards where the power > 6 and the colors is B

A-Baleful Beholder (Alchemy Horizons: Baldur's Gate #A-143)
Ancient Brass Dragon (Commander Legends: Battle for Baldur's Gate #111)
Arvinox, the Mind Flail (Universes Within #1)
Baleful Force (Vintage Masters #105)
B.F.M. (Big Furry Monster) (Unglued #29)
Cateran Overlord (Mercadian Masques #123)
Clackbridge Troll (Throne of Eldraine #84)
Commander Greven il-Vec (Tempest Remastered #88)
Cosmic Horror (Masters Edition III #61)
Death's Shadow (Double Masters #82)
Demon of Death's Gate (Magic 2011 #92)
Demon of Loathing (Theros Beyond Death #292)
Desecration Elemental (Duel Decks: Mirrodin Pure vs. New Phyrexia #57)
Devouring Strossus (Invasion #101)
Dread Cacodemon (Commander Anthology #55)
Drivnod, Carnage Dominus (Phyrexia: All Will Be One #90)
Elbrus, the Binding Blade // Withengar Unbound (Dark Ascension #147)
Elbrus, the Binding Blade // Withengar Unbound (Dark Ascension #147)
Fell Shepherd (Commander 2013 #78)
Gloom Sower (Core Set 2021 #100)
Griselbrand (Modern Masters 2017 #72)
Hoarding Broodlord (March of the Machine #110)
Hollowborn Barghest (Shadowmoor #68)
Hunted Horror (Commander Legends: Battle for Baldur's Gate #758)
Hypnox (Torment #64)
Infernal Spawn of Evil (Unsanctioned #38)
Infernal Spawn of Infernal Spawn of Evil (Unsanctioned #39)
Infernius Spawnington III, Esq. (Unsanctioned #40)
Kuro, Pitlord (Duel Decks Anthology: Divine vs. Demonic #44)
Liege of the Pit (Time Spiral #113)
Lord of the Pit (Iconic Masters #96)
Lord of the Void (Ravnica Remastered #81)
Morkrut Behemoth (Innistrad: Midnight Hunt #114)
Morkrut Necropod (Shadows over Innistrad #125)
Nyxathid (Jumpstart #259)
Pestilence Demon (Duel Decks: Nissa vs. Ob Nixilis #56)
Ravenous Demon // Archdemon of Greed (Dark Ascension #71)
Ravenous Demon // Archdemon of Greed (Dark Ascension #71)
Razaketh, the Foulblooded (Commander Masters #181)
Rotting Regisaur (Core Set 2020 #111)
Sanguine Praetor (Guildpact #60)
Shadowgrange Archfiend (Crimson Vow Commander #22)
Shadow of Mortality (Streets of New Capenna #94)
Shard of the Nightbringer (Warhammer 40,000 Commander #55)
Shard of the Void Dragon (Warhammer 40,000 Commander #56)
Skeletal Wurm (Rise of the Eldrazi #127)
Throne of the Grim Captain // The Grim Captain (The Lost Caverns of Ixalan #266)
Throne of the Grim Captain // The Grim Captain (The Lost Caverns of Ixalan #266)
Torgaar, Famine Incarnate (Game Night 2019 #35)
Toxrill, the Corrosive (Innistrad: Crimson Vow #132)
Vilis, Broker of Blood (Core Set 2020 #122)
Void Beckoner (Ikoria: Lair of Behemoths #104)
Waning Wurm (Planar Chaos #83)
Westvale Abbey // Ormendahl, Profane Prince (Shadows over Innistrad #281)
Westvale Abbey // Ormendahl, Profane Prince (Shadows over Innistrad #281)
Xathrid Demon (Commander 2014 #170)
Yargle, Glutton of Urborg (Commander Masters #202)

In the blink of an eye, they strode from deep snow to the end of this search.