There are exceptions, however
All-Seeing Arbiter Anje Falkenrath Bag of Holding Bone Miser Brallin, Skyshark Rider Cam and Farrik, Havoc Duo Captain Howler, Sea Scourge Conspiracy Theorist Containment Construct Containment Construct Cool but Rude Cryptcaller Chariot Currency Converter Diviner of Fates Doctor Doom, King of Latveria Dying to Serve Feast of Sanity Glint-Horn Buccaneer Green Goblin, Nemesis Hashaton, Scarab's Fist Hobgoblin, Mantled Marauder Inti, Seneschal of the Sun Ivora, Insatiable Heir Lady Spider, Maybelle Reilly Lazotep Chancellor Magmakin Artillerist Marauding Mako Mary Read and Anne Bonny Midnight Oil Mishra, Excavation Prodigy Monument to Endurance Moonstone, Harsh Mistress Mystic Redaction Necropotence Oskar, Rubbish Reclaimer Pitchstone Wall Pyre of the World Tree Rielle, the Everwise Scrounging Skyray Shipwreck Sifters Spider-Man, New Champion Surly Badgersaur Toluz, Clever Conductor Urza, Powerstone Prodigy Veronica, Dissident Scribe Wharf Infiltrator

Thanks to our friends from Wizards of the Coast for this great preview card
But that eBay sale, now that is harder to fathom
Not only can you attack with individual units, but you can choose to tap them for vehicle attacks or sacrifice artifacts for direct commander damage
Key highlights include rare and exclusive cards that can turn the tide of your game, making each pack an adventure