Backdoor Trade is a 1-star boost card that immediately triggers a norma check for the person who uses it, regardless of their position on the board. The user's turn ends after the norma check. It can only be used by the player with the lowest norma level or tied for the lowest norma level, and cannot be used at norma level 5.
Backdoor Trade is a very situational card due to its play restriction: it can only be used by the player with the lowest norma level. Its primary use is to let players who get off to a rough start or have trouble reaching theircatch up to their opponents. It can also be used by win-collecting players to allow them to continue traversing the board or pursuing an opponent rather than having to stop to norma. is a great user of Backdoor Trade, as she often wants to put off getting her 4th norma in order to prevent a event from taking place, removing her precious panels from the board.
Backdoor Trade has no use to a player who is not in last place or is close to winning the game. In such situations, it becomes a dead card in the player's hand that could have been something more useful. Backdoor Trade is more effective for players who are going for win normas, as this card does have a star cost. Players going for star normas have to be careful that the cost of playing the card doesn't drop them below the star level required to norma.
- If the player is holding a gift card that blocks the player from norma checking at the time of activating Backdoor Trade, such as , the two cards will cancel out resulting in the player receiving nothing, even if they had enough stars to fulfill the norma.