Flavor doesnt always work mechanically
If you go down this path, make sure to balance cheaper artifacts with threats like Furnace Hellkite
The effect is only during that player's turn, but that leaves everyone needing to cast their spells slowly instead of being able to play as many as they want
These sites make it easy to list your cards and can help you reach a larger audience of potential buyers

Academy Manufactor Agent 13, Sharon Carter Air Nomad Legacy Alquist Proft, Master Sleuth Angelic Sleuth Antique Collector April O'Neil, Live on the Scene Armed with Proof Astrid Peth Auspicious Arrival Azula, On the Hunt Ballroom Bearer of Overwhelming Truths Billiard Room Blink Briarbridge Patrol Briarbridge Tracker Bygone Bishop Byway Courier Callous Inspector Carnage Interpreter Case of the Filched Falcon Case of the Pilfered Proof Chalk Outline Cold Case Cracker Confirm Suspicions Confront the Unknown Conservatory Cunning Maneuver Curious Cadaver Curious Inquiry Daring Sleuth Declaration in Stone Deduce Dennick, Pious Apparition Detective's Satchel Dining Room Disorder in the Court Drag the Canal Drownyard Explorers Eliminate the Impossible Eloise, Nephalia Sleuth Ethereal Investigator Evidence Examiner Expose Evil Ezrim, Agency Chief Fae Offering Fateful Absence Fire Nation Raider Fire Nation Warship Five Hundred Year Diary Fleeting Memories Floodhound Flotsam // Jetsam Flotsam // Jetsam Follow the Bodies Forecasting Fortune Teller Forensic Gadgeteer Foul Play Funnel-Web Recluse Gleaming Geardrake Gone Missing Graf Mole Guess Your Fate Guess Your Fate Guess Your Fate Guess Your Fate Hall Hard Evidence Hold for Questioning Homicide Investigator Hostile Investigator

That's an obviously unfair and unreasonable position, but it's still my visceral feeling when it comes to Mind's EyeMind's Eye