Throne of Eldraine makes opening boosters a greater thrill than ever. They're loaded with beautiful and collectible new card treatments:

Borderless Planeswalkers. This is a planeswalker card where the art goes all the way to the border. (similar to Mythic Edition planeswalkers).
Extended art frames. This is where the art on a card runs all the way to the edge of the card on the left and right side (similar to box toppers for Ultimate Masters).
Showcase frames. Cards with a new stylized art and frames that play into the set's theme.