Not only does this change which cards and effects might be valuable to either side, but it allows for more specialized deckbuilding on the hero side as players might try to take up different roles to combat the multidimensional threat of the archenemy
Judith Aristocrats Judith, The Scourge Diva | Illustration by Wesley Burt Commander (1) Planeswalkers (2) Tibalt, Rakish Instigator Chandra, Acolyte of Flame Creatures (33) Anax, Hardened in the Forge Blood Artist Bloodsoaked Champion Braids, Arisen Nightmare Burglar Rat Carrion Feeder Cult Conscript Demon's Disciple Dusk Legion Zealot Fain, the Broker Gravelighter Grim Haruspex Harmonic Prodigy Hissing Iguanar Juri, Master of the Revue Lagomos, Hand of Hatred Mayhem Devil Midnight Reaper Mirkwood Bats Morbid Opportunist Murderous Redcap Pawn of Ulamog Plaguecrafter Priest of Forgotten Gods Putrid Goblin Reassembling Skeleton Skirk Prospector Syr Konrad, the Grim Tor Wauki the Younger Torbran, Thane of Red Fell Viscera Seer Woe Strider Zulaport Cutthroat Instants (10) Bedevil Brimstone Volley Chaos Warp Deadly Dispute First Day of Class Infernal Grasp Kazuul's Fury Terminate Tragic Slip Village Rites Sorceries (7) Bloodsoaked Insight Bone Shards Innocent Blood Dreadbore Feed the Swarm Night's Whisper Sign in Blood Enchantments (4) Arguel's Blood Fast Bastion of Remembrance Dreadhorde Invasion Goblin Bombardment Artifacts (8) Arcane Signet Cursed Mirror Fellwar Stone Mind Stone Rakdos Signet Sol Ring Urabrask's Forge Worn Powerstone Lands (35) Akoum Refuge Ash Barrens Blackcleave Cliffs Boiling Rock Prison Bojuka Bog Canyon Slough Castle Locthwain Cinder Marsh Command Tower Dragonskull Summit Foreboding Ruins High Market Kher Keep Mountain x8 Rakdos Carnarium Smoldering Marsh Sulfurous Springs Swamp x9 Tainted Peak Temple of Malice Who doesnt love to put on a show for the table
(So you'll want to read up on what the different Magic: The Gathering mana colours mean.) That means that if you have a commander who is red, you can only use red cards, whereas a commander with three colours gets access to all three of those colours
Somehow I dont think riding around on a giant toad fits that description, but thats what we got with Tatsunari, Toad Rider
