60 cards where the colors ≥ W and the color identity ≤ BRW and (the card is available on Paper) and the cards are Assassins, Mercenaries, Pirates, Rogues, or Warlocks

Altaïr Ibn-La'Ahad (Assassin's Creed #45)
Angelic Sell-Sword (Outlaws of Thunder Junction Commander #10)
Astarion, the Decadent (Commander Legends: Battle for Baldur's Gate #265)
Audacious Infiltrator (Aether Revolt #7)
Aven Interrupter (Outlaws of Thunder Junction #4)
Avian Changeling (Modern Masters #6)
Breena, the Demagogue (Outlaws of Thunder Junction Commander #217)
"Brims" Barone, Midway Mobster (Unfinity #163)
Candlegrove Witch (Innistrad: Midnight Hunt #8)
Changeling Hero (Lorwyn #9)
Changeling Sentinel (Morningtide #6)
Claim Jumper (Outlaws of Thunder Junction #8)
Crib Swap (Commander Legends: Battle for Baldur's Gate #690)
Dawnhart Geist (Innistrad: Crimson Vow #8)
Desdemona, Freedom's Edge (Fallout #101)
Eivor, Battle-Ready (Assassin's Creed #274)
Emcee (Unsanctioned #3)
Eriette of the Charmed Apple (Wilds of Eldraine #202)
Extraction Specialist (Streets of New Capenna #12)
Extus, Oriq Overlord // Awaken the Blood Avatar (Strixhaven: School of Mages #149)
Extus, Oriq Overlord // Awaken the Blood Avatar (Strixhaven: School of Mages #149)
Fleshtaker (Innistrad: Midnight Hunt #222)
Frankie Peanuts (Unsanctioned #5)
Goldmeadow Dodger (Lorwyn #16)
Hopeful Initiate (Innistrad: Crimson Vow #20)
Illuminator Virtuoso (Streets of New Capenna #17)
Impostor of the Sixth Pride (Modern Horizons #14)
Irregular Cohort (Commander Legends: Battle for Baldur's Gate #696)
Katilda, Dawnhart Martyr // Katilda's Rising Dawn (Innistrad: Crimson Vow #21)
Katilda, Dawnhart Martyr // Katilda's Rising Dawn (Innistrad: Crimson Vow #21)
Kelsien, the Plague (Commander 2020 #11)
Killian, Ink Duelist (Strixhaven: School of Mages #197)
Lotho, Corrupt Shirriff (The Lord of the Rings: Tales of Middle-earth #213)
Mage's Attendant (Commander Legends: Battle for Baldur's Gate #698)
Malik, Grim Manipulator (Universes Within #23)
Mercenaries (Ice Age #44)
Mercenary Informer (Prophecy #15)
Mirror Entity (Outlaws of Thunder Junction Commander #83)
Mistmeadow Skulk (Outlaws of Thunder Junction Commander #84)
Nalia de'Arnise (Commander Legends: Battle for Baldur's Gate #649)
Neyam Shai Murad (Warhammer 40,000 Commander #135)
Nurturing Pixie (Outlaws of Thunder Junction #20)
Olivia, Opulent Outlaw (Outlaws of Thunder Junction Commander #2)
Omenport Vigilante (Outlaws of Thunder Junction #21)
Outlaw Medic (Outlaws of Thunder Junction #23)
Owlin Shieldmage (Strixhaven: School of Mages #210)
Panicked Bystander // Cackling Culprit (Innistrad: Crimson Vow #28)
Panicked Bystander // Cackling Culprit (Innistrad: Crimson Vow #28)
Priest of Fell Rites (Modern Horizons 2 #208)
Queen Marchesa (Outlaws of Thunder Junction Commander #239)
Robaran Mercenaries (Dominaria United Commander #22)
Ruthless Lawbringer (Outlaws of Thunder Junction #229)
Shadewing Laureate (Strixhaven: School of Mages #229)
Shaile, Dean of Radiance // Embrose, Dean of Shadow (Strixhaven: School of Mages #158)
Shaile, Dean of Radiance // Embrose, Dean of Shadow (Strixhaven: School of Mages #158)
Shields of Velis Vel (Lorwyn #39)
Silverquill Apprentice (Strixhaven: School of Mages #231)
Spiteful Squad (Strixhaven: School of Mages #237)
Sterling Keykeeper (Outlaws of Thunder Junction #32)
Syndicate Heavy (Ravnica: Clue Edition #47)
Taii Wakeen, Perfect Shot (Outlaws of Thunder Junction #234)
Valiant Changeling (Commander Legends: Battle for Baldur's Gate #711)
Vihaan, Goldwaker (Outlaws of Thunder Junction Commander #8)
Wispdrinker Vampire (Murders at Karlov Manor #243)

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