Since the third set was an ally-color set, we couldn't make the center of the clans their enemy color because it was removed in the third set
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Of course, given that Commander is a format defined by your choice of general - the floor and ceiling of these cards vary in context
Nahiri, Storm of Stone: first strike and cheaper equip costs is always good, plus she has removal Stoneforge Mystic: Its Stoneforge Mystic
You'll want to pair this Mardu commander with mill cards like Mesmeric Orb and pinpoint graveyard hate like Lion Sash to get creatures in your opponents' graveyard and exile chaff like Llanowar Elves
$1.29 Lady Octopus, Inspired Inventor Marvel's Spider-Man $0.35 Tombstone, Career Criminal Marvel's Spider-Man $17.99 Norman Osborn Marvel's Spider-Man $0.49 Mysterio, Master of Illusion Marvel's Spider-Man $0.69 Green Goblin, Revenant Marvel's Spider-Man $0.49 Rocket-Powered Goblin Glider Marvel's Spider-Man $1.49 Shadow of the Goblin Marvel's Spider-Man $0.69 Agent Venom Marvel's Spider-Man $5.99 Behold the Sinister Six