58 cards where the name includes “fiend”

Arcbound Fiend (Darksteel #96)
Archfiend of Depravity (Archenemy: Nicol Bolas #31)
Archfiend of Despair (Commander Masters #137)
Archfiend of Ifnir (Amonkhet #78)
Archfiend of Sorrows (Modern Horizons 2 #74)
Archfiend of Spite (Commander 2019 #14)
Archfiend of the Dross (Phyrexia: All Will Be One #82)
Archfiend's Vessel (Core Set 2021 #88)
Asmodeus the Archfiend (Adventures in the Forgotten Realms #88)
Bellowing Fiend (Seventh Edition #119)
Bogardan Firefiend (Planechase #48)
Cackling Fiend (Dominaria Remastered #76)
Cloistered Youth // Unholy Fiend (Innistrad #8)
Cloistered Youth // Unholy Fiend (Innistrad #8)
Daring Fiendbonder (Commander 2020 #41)
Elder Deep-Fiend (Commander Legends #368)
Ethrimik, Imagined Fiend (Alchemy: Duskmourn #1)
Fiend Artisan (Ikoria: Lair of Behemoths #220)
Fiend Binder (Game Night 2019 #7)
Fiend Hunter (Ultimate Masters #17)
Fiendish Duo (Murders at Karlov Manor Commander #153)
Fiendish Panda (Foundations #120)
Fiendlash (Commander Masters #221)
Fiend of the Shadows (Forgotten Realms Commander #99)
Fiendslayer Paladin (Archenemy: Nicol Bolas #8)
Firefiend Elemental (Magic Origins #146)
Footlight Fiend (Ravnica: Clue Edition #191)
Gibbering Fiend (Shadows over Innistrad #161)
Glaze Fiend (Double Masters #95)
Goblin Fire Fiend (Ravnica: City of Guilds #127)
Graven Archfiend (Alchemy: New Capenna #7)
Heckling Fiends (Conspiracy #145)
Heirloom Mirror // Inherited Fiend (Innistrad: Midnight Hunt #105)
Heirloom Mirror // Inherited Fiend (Innistrad: Midnight Hunt #105)
Henchfiend of Ukor (Time Spiral Remastered #170)
Henrika Domnathi // Henrika, Infernal Seer (Innistrad: Crimson Vow #335)
Henrika Domnathi // Henrika, Infernal Seer (Innistrad: Crimson Vow #335)
Hobblefiend (Core Set 2021 #152)
Kiln Fiend (Jumpstart #338)
Kuldotha Flamefiend (Double Masters #134)
Mathas, Fiend Seeker (Double Masters 2022 #252)
Mesmeric Fiend (Masters 25 #97)
Misshapen Fiend (Mercadian Masques #147)
Moor Fiend (Ice Age #153)
Murkfiend Liege (Double Masters 2022 #259)
Mycosynth Fiend (New Phyrexia #117)
Necropolis Fiend (Khans of Tarkir #82)
Phantasmal Fiend (Masters Edition II #108)
Plague Fiend (Prophecy #73)
Raphael, Fiendish Savior (Commander Legends: Battle for Baldur's Gate #292)
Rathi Fiend (Nemesis #68)
Shadowgrange Archfiend (Crimson Vow Commander #22)
Slag Fiend (New Phyrexia #95)
Soulcage Fiend (Avacyn Restored #120)
Spark Fiend (Unglued #51)
Stubborn Burrowfiend (Outlaws of Thunder Junction #184)
Tar Fiend (Shards of Alara #89)
Tectonic Fiend (Time Spiral #181)
Tibalt, the Fiend-Blooded (Duel Decks: Sorin vs. Tibalt #41)
Timmerian Fiends (Homelands #58)
Torch Fiend (Jumpstart #367)

It is the moment of discovery, the triumph of the mind, and the end of these results.