This is a more drawn out line, but one that is incredibly common with this deck
adding artifacts sends it straight over the top (or gunwale, as it were)
March of the Multitudes was a mythic that's still a very popular choice for token decks in its colors
If youre playing a blue Commander deck, your deck will only be better if you add these into it
When you choose a deck, all 20 cards within it are added permanently to your collection , and can be used freely - meaning that you can put them in decks you make yourself so if you have all the cards in the Clodsire ex deck, it means there's no point in choosing that one, as you'll only get duplicates
That way, if players dont want to spend their money on an entire booster box, they can just focus on grabbing the few cards that they want