Once done, you will see a confirmation message on your screen indicating the successful import.From there, click on the IMPORT button on the lower left-hand side of the screen.Login to your MTG Arena account and click on the Decks tab.Want to command the undead? Copy the Liliana Core Set 2021 Planeswalker Deck below:.This could be any program that displays information in a simplified format.Copy the desired decklist into your computer’s clipboard.To import a deck into MTG Arena, please follow the steps below: Importing a deck into MTG Arena is a great way to test out card combos, quickly jump into the current metagame, or emulate the style of your favorite players.