I would imagine Sarkhan's Unsealing would need to be renamed, since it explicitly references a Magic: The Gathering character, and the Eldrazi Kindred Instant Not of This World may not be a good thematic fit, but a Fight Rigging card themed after the Wall Market fighting arena would make total sense
Once you've hit six mana, your gameplan shifts towards your commander
Challenge your opponents using new strategies enabled by these new cards
As your average CMC ticks down toward 1 (or even less), you can drop more lands
It'll either give you more creatures, burn all your opponents, draw you cards, or put +1/+1 counters on all of your artifact creatures (which most of the creatures in the deck are)
Since weve only seen siege battles so far, itll also be interesting to see what non-siege battles look like