You can then use cards from your collection to build decks and cubes
Quest for Ulas Temple can get a counter, you can set up Sapling of Colfenor for a massive attack of life gain and draw the card, you can find abilities for Skill Borrower, play it with Garruks Horde, haste it out with Impromptu Raid, find a use for Descendants Path, and so forth
Get the colors most sought after, Commander staples in an all new design
However, throughout the update, Wizards repeated the sentiment that the team "don't feel the need to ban anything at this time"
We'll have to wait a few months to be able to say for sure, but it's definitely been interesting, as an uninvolved bystander who was never going to spend hundreds of dollars on a box of cards, watching the prices see-saw up and down