36 cards where the color identity ≤ BRU and (the full Oracle text includes “rogue” or the full Oracle text includes “pirate” or the full Oracle text includes “warlock” or the full Oracle text includes “assassin” or the full Oracle text includes “mercenar” or the f…

Notorious Throng (Zendikar Rising Commander #33)
Coveted Prize (Zendikar Rising #95)
Siren's Ruse (Ixalan #80)
Thwart the Grave (Commander Legends: Battle for Baldur's Gate #773)
Fiery Cannonade (Commander Legends #178)
Tegwyll's Scouring (Wilds of Eldraine Commander #16)
March of the Drowned (Ixalan #112)
Knowledge Exploitation (Morningtide #38)
Lookout's Dispersal (Ixalan #62)
Deadly Alliance (Zendikar Rising #96)
Concerted Defense (Zendikar Rising #52)
Kaito's Pursuit (Kamigawa: Neon Dynasty #103)
Waste Management (New Capenna Commander #40)
Mentor's Guidance (Strixhaven: School of Mages #46)
Shoot the Sheriff (Outlaws of Thunder Junction #106)
Back in Town (Outlaws of Thunder Junction Commander #18)
Buccaneer's Bravado (Rivals of Ixalan #96)
Thieves' Fortune (Morningtide #54)
Cateran Summons (Mercadian Masques #126)
Dead Before Sunrise (Outlaws of Thunder Junction Commander #26)
Warren Weirding (Modern Masters #104)
Skyclave Plunder (Zendikar Rising #81)
Violet Pall (Morningtide #81)
Angrath's Fury (Rivals of Ixalan #204)
Grim Captain's Call (Ixalan #108)
Mourner's Surprise (Outlaws of Thunder Junction #94)
Caught in the Crossfire (Outlaws of Thunder Junction #117)
Unfortunate Accident (Outlaws of Thunder Junction #111)
Take the Fall (Outlaws of Thunder Junction #73)
Morsel Theft (Morningtide #68)
Outlaws' Fury (Outlaws of Thunder Junction #136)
Noggin Whack (Morningtide #70)
Synchronized Spellcraft (Zendikar Rising #168)
A-Mentor's Guidance (Strixhaven: School of Mages #A-46)
Pirate's Landing (Alchemy: Ixalan #16)
Very Cryptic Command (Unstable #49f)

This search is finished. Now the real work can begin.