Only some cards will be valuable, and several elements play a role in determining worth
Since cards printed in Commander decks are playable in Legacy formats (and also show up in spikier casual formats like Cube), players from those formats snapped up the precons, leading to shortages and decks being sold for well over MSRP
Ohabi Caleria Oh look, archers-matter
They capture the action and excitement of the sport
The "All Unlimited, First Edition and Reverse Holo cards correspond with English sets." part really just means that if you have a set in English, it will be exactly the same in that other language
Invert Polarity Invert Polarity is kind of a messed up card, because the failcase is Cancel, while the upside is a lot like casting a 3-mana Fractured Identity to steal something off the stack