Lutri, the Spellchaser was controversially (and correctly, in my opinion) banned from Commander on release as itd otherwise be an auto-include in any deck playing blue and red (almost any Commander deck fulfills the companion restriction, as this was clearly not designed for Commander)
Although McNeill is a talented artist, a lot of his work outside of MTG heavily features white supremacy imagery, pro-Nazi motifs, misogyny, and other concepts that would not be welcome in (modern) MTG art
Another choice is to shut them down with cards like Stony Silence and Collector Ouphe that prevent artifacts from activating abilities
Also: Warren Instigator doesnt specify combat damage, so you can always equip it with a Viridian Longbow-type effect
You can just sacrifice it to Tormod's Crypt everyone

Forces of the Imperium Decklist Commander 1 Inquisitor GreyfaxInquisitor Greyfax Creatures (30) 1 Arco-FlagellantArco-Flagellant 1 Assault IntercessorAssault Intercessor 1 Bastion ProtectorBastion Protector 1 Belisarius CawlBelisarius Cawl 1 Callidus AssassinCallidus Assassin 1 Celestine, the Living SaintCelestine, the Living Saint 1 Commissar Severina RaineCommissar Severina Raine 1 Company CommanderCompany Commander 1 Cybernetica DatasmithCybernetica Datasmith 1 Epistolary LibrarianEpistolary Librarian 1 Grey Knight ParagonGrey Knight Paragon 1 Inquisitor EisenhornInquisitor Eisenhorn 1 Marneus CalgarMarneus Calgar 1 Neyam Shai MuradNeyam Shai Murad 1 Primaris ChaplainPrimaris Chaplain 1 Primaris EliminatorPrimaris Eliminator 1 Redemptor DreadnoughtRedemptor Dreadnought 1 Sanguinary PriestSanguinary Priest 1 Sicarian InfiltratorSicarian Infiltrator 1 Sister HospitallerSister Hospitaller 1 Sister RepentiaSister Repentia 1 Sister of SilenceSister of Silence 1 Space Marine DevastatorSpace Marine Devastator 1 Space Marine ScoutSpace Marine Scout 1 Thunderwolf CavalryThunderwolf Cavalry 1 Triumph of Saint KatherineTriumph of Saint Katherine 1 Ultramarines Honour GuardUltramarines Honour Guard 1 Vanguard SuppressorVanguard Suppressor 1 Vexilus PraetorVexilus Praetor 1 ZephyrimZephyrim Instants (6) 1 And They Shall Know No FearAnd They Shall Know No Fear 1 Deny the WitchDeny the Witch 1 Entrapment ManeuverEntrapment Maneuver 1 MortifyMortify 1 Swords to PlowsharesSwords to Plowshares 1 Utter EndUtter End Sorceries (8) 1 Collective EffortCollective Effort 1 Deploy to the FrontDeploy to the Front 1 ExterminatusExterminatus 1 Fell the MightyFell the Mighty 1 For the Emperor!For the Emperor
