The tri-colored identity might inhibit Bladecoil Serpents use, especially if the discard mode is the most appealing to you, but perhaps Nicol Bolas or Lord Xander, the Collector players might want a way to spread that hand-shredding love to everyone, not just target opponents
Lyzolda, the Blood Witch Do I even need to say that you should run this card in a deck that runs mostly, not to say only, Rakdos-colored cards
Again, the early sets were not numbered

Decklist: The Gitrog Monster in Commander The Gitrog Monster | Illustration by Jason Kang Commander (1) Artifacts (2) Creatures (31) Avenger of Zendikar Baloth Prime Bloodghast Caustic Caterpillar Demon of Dark Schemes Fang, Fearless l'Cie Golgari Brownscale Golgari Grave-Troll Golgari Thug Lotus Cobra Necrotic Ooze Noose Constrictor Rampaging Baloths Ramunap Excavator Reclamation Sage Rumbleweed Sakura-Tribe Elder Satyr Wayfinder Scute Swarm Skirge Familiar Smothering Abomination Spore Frog Springbloom Druid Stinkweed Imp Syr Konrad, the Grim Terastodon Tireless Tracker Titania, Protector of Argoth Viscera Seer Whisper, Blood Liturgist Zulaport Cutthroat Instants (5) Elemental Teachings Grisly Salvage Harrow Roiling Regrowth Windgrace's Judgment Sorceries (10) Dread Return Exsanguinate Gaze of Granite Jarad's Orders Life from the Loam Living Death Spider Spawning Splendid Reclamation Tempt with Discovery Worm Harvest Enchantments (6) Ayula's Influence Burgeoning Dictate of Erebos Spelunking Tectonic Split The Mending of Dominaria Artifacts (4) Cauldron of Souls Conduit of Worlds Hedge Shredder Swiftfoot Boots Lands (41) Barren Moor Bojuka Bog Command Tower Cryptic Caves Dakmor Salvage Drownyard Temple Evolving Wilds Field of the Dead Forest x9 Geier Reach Sanitarium Ghost Quarter Golgari Rot Farm Grim Backwoods Hissing Quagmire Llanowar Wastes Lotus Field Mortuary Mire Myriad Landscape Slippery Karst Swamp x8 Tectonic Edge Temple of Malady Terramorphic Expanse Thespian's Stage Tranquil Thicket Witch's Cottage The Gitrog Monster is a towering example of how Golgari decks get built from the graveyard out

Well, dear readers, the Background cards can be cast from your command zone
Between Spell Queller, Collected Company, and Archangel Avacyn, Bant Company has the ability to play most of the game on your turn, and having a Transgress the Mind that forces the Bant Company player to react to it is valuable