Cards like Atraxa, Grand Unifier, Tarmogoyf, Reconstruct History, and Nethergoyf increase in effectiveness the more card types you have access to, so including a few sorceries helps unlock these cards fullest potentials
Being able to form strategies while keeping the cards on theme could be a major incentive for fans of both Spider-Man and MTG
Yes, you need to have a basic land for it to work, but thats not a big ask to take out a creature or planeswalker with little chance your opponent will get it back

Arcades' Big Butts Arcades, the Strategist | Illustration by Even Amundsen Commander (1) Creatures (34) Amaranthine Wall Angelic Wall Consulate Skygate Crenellated Wall Excavated Wall Glacial Wall Hover Barrier Jeskai Barricade Jungle Barrier Mnemonic Wall Mobile Fort Overgrown Battlement Quicksilver Wall Steel Wall Sunscape Familiar Wall of Air Wall of Denial Wall of Junk Wall of Shards Wall of Stolen Identity Wall of Tanglecord Wall of Tears Axebane Guardian Brawn Colossus of Akros Drift of Phantasms Flumph Hornet Nest Perimeter Captain Riptide Turtle Sidar Kondo of Jamuraa Tetsuko Umezawa, Fugitive Towering Titan Wonder Instants (9) Akroma's Will Bant Charm Barrier Breach Counterspell Eerie Interlude Heroic Intervention Krosan Grip Negate Tower Defense Enchantments (6) Assault Formation High Alert Propaganda Reconnaissance Reconnaissance Mission Serra's Blessing Artifacts (8) Arcane Signet Commander's Sphere Dragon Throne of Tarkir Meekstone Mirror Shield Peregrine Mask Simic Signet Sol Ring Lands (42) Azorius Chancery Azorius Guildgate Command Beacon Command Tower Evolving Wilds Forest x10 Island x10 Opal Palace Overgrown Farmland Plains x9 Prairie Stream Rogue's Passage Seaside Citadel Selesnya Guildgate Temple of Mystery Tranquil Cove One of few commanders that allows the innate ability to use toughness in combat, Arcades, the Strategist offers a super unique combat-focused deck

Viconia isn't a reanimation powerhouse, as she doesn't bring things back to the battlefield and you have to jump through some hoops to make the most of her
A few old-border cards in a sea of Modern can look like your deck got dressed in the dark