Much like Mox Diamond, the original Moxs let you ramp up in mana on your first turn, getting around the one land-per-turn rule and essentially starting you off on turn two while your opponent might still be sitting at one land
Fair warning this deck is genuinely powerful and will draw removal immediately at most tables
Against someone who can't spit flows, though, Clamilton cannot compete
Here are some of the best lands for Commander
It'll cost you two life, of course, but that's a small price to pay for removing the best attacker on the board
If a creature with persist that has +1/+1 counters on it receives enough -1/-1 counters to cause it to be destroyed by lethal damage or put into its owner's graveyard for having 0 or less toughness, persist won't trigger and the card won't return to the battlefield