40 cards where the card types include “devil” and the color identity ≤ R

Auntie Blyte, Bad Influence (Jumpstart 2022 #30)
Bedlam Reveler (Double Masters 2022 #104)
Big Spender (Alchemy: New Capenna #10)
Brimstone Vandal (Innistrad: Midnight Hunt #130)
Chained Brute (Jumpstart #19)
Charmbreaker Devils (Commander 2021 #162)
Devilish Valet (Streets of New Capenna #105)
Devil K. Nevil (Unfinity #104)
Festival Crasher (Innistrad: Midnight Hunt #140)
Fiendish Duo (Murders at Karlov Manor Commander #153)
Flayer of the Hatebound (Commander 2019 #144)
Forge Devil (Jumpstart #322)
Frenzied Devils (Innistrad: Crimson Vow #159)
Gang of Devils (Conspiracy: Take the Crown #158)
Gibbering Fiend (Shadows over Innistrad #161)
Havoc Devils (Core Set 2019 #146)
Havoc Jester (Ravnica: Clue Edition #138)
Heckling Fiends (Conspiracy #145)
Hellrider (Jumpstart #334)
Hobblefiend (Core Set 2021 #152)
Hulking Devil (Shadows over Innistrad #165)
Impetuous Devils (Eldritch Moon #132)
Jalum Grifter (Unglued #47)
Mayhem Patrol (Streets of New Capenna #114)
Pain Distributor (March of the Machine Commander #33)
Pitchburn Devils (Core Set 2021 #156)
Rad Rascal (Unfinity #121)
Reckless Detective (Murders at Karlov Manor #141)
Riot Devils (Innistrad #160)
Scalding Devil (Avacyn Restored #155)
Scourge Devil (Modern Masters 2017 #111)
Sin Prodder (Jumpstart #363)
Spiteful Prankster (Jumpstart #26)
Tibalt's Rager (Jumpstart #366)
Torch Fiend (Jumpstart #367)
Vengeful Devil (Modern Horizons #152)
Vexing Devil (Ultimate Masters #154)
Wildfire Devils (Commander 2021 #183)
Witty Roastmaster (Streets of New Capenna #131)
Zurzoth, Chaos Rider (New Capenna Commander #278)

The message was clear to Sorin—time to search for something else.