It takes some finagling, but this could help you keep cards that are meant to only last a single turn on the battlefield for an indefinite period, and if you double up on Warp effects with someone like Tannuk, you can get stuff like the previously mentioned Blightsteel Colossus on the field permanently that much faster
Between its myriad tribes, mechanics, and available strategies, black possesses a sizable roster of viable commanders in the Commander format
Well mention this quite a lot in this article, but again balance and being well-rounded is key

Here is a comprehensive list of codes that are still active: EnlightenMe : Redeems Card Style: Narset, Parter of Veils FNMATHOME : Redeems Cosmetic Items FoilFungus : Redeems Card Style: Deathbloom Thallid InnerDemon : Redeems Card Style: Ob Nixilis, the Hate-Twisted LevelUp : Redeems two Levels of the current Mastery Tree OverTheMoon : Redeems Card Style: Arlinn, Voice of the Pack ParallaxPotion : Redeems Card Style: Revitalize ShieldsUp : Redeems Card Style: Teyo, The Shieldmage ShinyGoblinPirate : Redeems Card Style: Fanatical Firebrand SparkleDruid : Redeems Card Style: Druid of the Cowl SuperScry : Redeems Card Style: Opt WrittenInStone : Redeems Card Style: Nahiri, Storm of the Stone RockJocks : Lorehold Sleeve ArtClub : Prismari Sleeve MathWhizzes : Quandrix Sleeve DebateDuelists : Silverquill Sleeve SwampPunks : Witherbloom Sleeve RestorativeBurst: 2000 XP on Mastery Track ExperimentalOverload: 2000 XP on Mastery Track GameKnights: Avenging Angels Deck PARCELMYR: 2000 XP on Mastery Track UNIQUE CODES Outside of the Free Generic Codes, Wizards of the Coast has been including MTG Arena Codes in many of their physical products

Precision die cutting helps keep sizing consistent across the whole order
Its sale broke the Guinness World Record for the most expensive trading card ever sold at auction