When a set is released, many players who have hundreds of spare common and uncommon wildcards will craft the entire set's common and uncommon cards before opening any packs. This is done to accelerate vault progression (duplicate commons grant 0.1% vault progress, uncommons grant 0.3%).

The textbox and exports below contain an entire set's commons and uncommons so you can import them as decks and click the Craft All button. Arena caps imports at 250 cards, so the cards are split into multiple tabs - import each tab into Arena one at a time.