Not sure you already catalogued that Dusclops? Want to go back in time and relive an epic pull?
The Activity Log keeps track of every change in your collection whether you've gained new cards or removed some. You can see the card name, variant, set, quantity change, and timestamp.
To access the Activity Log, click on the activity tab in your profile or the activity icon from your avatar menu.
Cards that new to a collection will have the yellow NEW tag.