To view the detailed information for a card in your collection, head to your Collection page.
Find the card you wish to view, and click on the card image if in Grid view or the card's name if in List view. This will open a panel with the following:
a hi resolution image of the card
the card's name
when the card was added
the set the card was printed in
the language that the card is printed in
the card's price
the card's condition
whether the card is foil or non-foil
the tags associated with the card
the deck that the card is in (if it is linked to a card in a deck)
From this panel, you can edit a card's information.