mtg march of the machines commander decks ranked TCG but they can use cards from throughout Magics history. March of the Machine Commander

After these common and uncommon cards, the 9th card in a Set Booster pack is the head-turning slot, as WOTC puts it

Progenitus The soul of the world has protection against everything , and it was the first time this expression was used on a MTG card

Any of these options are more than powerful enough to compete at an FNM or even the Grand Prix level, so the build you choose is mostly about which style you like the most and how much you're willing to spend

They're typically only helpful for intentionally stalling out battles to grind out more EXP/JP when you don't yet have access to a debilitating status effect move like Frog to cripple the last enemy

There is some additional value from the extra rares you open, and definitely more fun when you open something exciting