Upside Down
上下逆さま (Jōge Sakasama)
Japanese Wiki: 8934

Upside Down is a keyword action.


It refers to the orientation of card which is contrary position in which the Card Name appearing on the top of the card while it is facing you.

Currently, the only cards that can be put upside down while in the battle zone are Fields (specifically: D2 Fields).

After their cost is paid, D2 Fields are put into the battle zone and remain there until removed by card removal, or another D2 Field is put into the battle zone.

They also feature an ability known as Denjara Switch.

Denjara Switch—At the PHASE of your turn, you may turn this D2 Field upside down for the rest of the game. If you do, EFFECT

At either the start or end of turn, you may put one of your D2 Fields upside down in order to trigger an ability. There is no way to change them back after they are put upside down without playing a new D2 Field.


From the Duel Masters - General Game Rules: Version 1.9 (August 9th, 2018)

  • 701.27. Upside down
    • 701.27a To upside down is to turn a field upside down in the battle zone.

From the Duel Masters - General Game Rules: Version 1.12 (September 28th, 2018)

  • 701.27. 上下逆さまにする
    • 701.27a 上下逆さまにするとは, フィールドを正位置に対して上下逆さの状態にすることです.


  • While cards put into your mana zone are placed in the opposite direction facing your opponent when they are untapped, it has nothing to do with this term of "Upside Down".