New players can learn how to play the game through extensive tutorials, while more experienced players can try building their own decks, or take on other players online
Panharmonicon is already an extremely powerful Commander card, and Virtue of Knowledge provides you with almost identical benefits
Each one is designed for a different type of player and a different purpose
Mostly these are repeats of art used in other digital or printed tokens, but there's one exception: Daarken did a unique art for a black Wurm token to go with his new illustration for Penumbra Wurm, so that's included there: I swapped the wolf for the Innistrad image
But any time a particular card starts fetching crazy money, it causes the issues for the TCG to only get worse
Personally, I recommend picking up a few starter decks