So if you can keep your commander in play you get benefits from your backgrounds, plus the powerful effects from cards like Skyhunter Strike Force for a massive melee, Tyrant's Familiar to burn off creatures, and Thunderfoot Baloth to finish opponents with a permanent, only slightly smaller Overrun
The Behemoth has haste to swing on the turn it arrives, and the Cavalry has flying permanently, so it's always evasive
Some of these cards will be Eternal Legal, introducing a bunch of new wacky things for Commander
The two are fairly evenly matched without upgrades
Removal Do both decks have more removal than creatures, and is the game becoming a war over resources
This keeps the tables heat off you while you steadily draw extra cards