| Set: |
Labyrinth of Nightmare |
| Card type: |
Normal Trap |
| Rarity: |
Common |
| Attack: |
0 |
| Defense: |
0 |
This card can only be activated in the Battle Phase. Select 1 attacking monster and decrease the selected monster's ATK by 700 points during the turn this card is activated.
![Mask of Weakness [LON-EN015] Common](http://cardcastergames.com/cdn/shop/files/ygo_placeholder_99d98a61-b222-4c78-addd-769ccb4ac1d6_800x.png?v=1739294735)
![Mask of Weakness [LON-EN015] Common](http://cardcastergames.com/cdn/shop/files/ygo_placeholder_99d98a61-b222-4c78-addd-769ccb4ac1d6_1024x.png?v=1739294735)
