But I believe Karn, the Great Creator truly breaks the format (in the bad way)
Cavalry Charge (White-Blue-Black deck)100-card ready-to-play March of the Machine Commander Deck with 2 Traditional Foil Legendary cards and 98 nonfoil cards 10 Planechase cards and 1 planar die to trigger unique abilities and jump across the Multiverse 2-card Collector Booster Sample Packcontains 2 special treatment cards from the March of the Machine main set, including 1 Rare or Mythic Rare and at least 1 Traditional Foil card Deck introduces 10 never-before-seen MTG cards to Commander Accessories1 Foil-Etched Display Commander, 10 double-sided tokens, Life Tracker, and deck box Strengths and Weaknesses The precon excels at drawing cards to the point where there are too many raw card advantage spells

Aladdin, Heroic Outlaw x1 Aladdin, Street Rat x3 Donald Duck, Boisterous Fowl x2 Captain, Colonels Lieutenant x2 Lefou, Investigator x1 Pongo, Ol Rascal x3 Rapunzel, Letting Down Her Hair x3 Scar, Fiery Usurper x2 Sergeant Tibbs, Courgageus Cat x3 Stitch, Abomination x1 Dragon Fire x3 Hes Got a Sword x2 Shield of Virtue x2 Aladdin, Prince Ali x2 Cruella De Vil, Miserable as Usual x1 Duke of Weselton, Opportunistic Official x2 Horace, No-Good Scoundrel x3 Iago, Loud-Mouthed Parrot x1 Jasper, Common Crook x2 Mad Hatter, Gracious Host x3 Megara, Pulling the Strings x3 Mickey Mouse, Steamboat Pilot x3 Peter Pan, Never Landing x2 Mother Knows Best x3 Stampede x2 Steal From the Rich x1 Vicious Betrayal x2 Stolen Scimitar x2 Sapphire and Steel The Sapphire and Steel deck is built around quickly ramping up the Inkwell and protecting characters using Bodyguards and Ward

Aatchik, Emerald Radian Aatchik, Emerald Radian is small, but its a nice payoff for self-milling, considering that we can make many insect tokens when it enters
Black decks like to make burst-mana and to keep their hands topped up
Pick your spots in multiplayer