Laplace's Demon
- Card Number
- BT12-107
- Rarity
- C
- Category
- Option
- Block Icon
- 02
- Colour
- Black
- Use Cost
- 1
- Effect
Main Until the end of your opponent's turn, 1 of your opponent's Digimon gains "Start of Your Main Phase Attack with this Digimon."
- Security Effect
Security Add this card to its owner's hand.
- Q&A
- Date
- Question
Can I choose an opponent's Digimon with a "can't attack" effect as the target when I activate this card's [Main] effect?
- Answer
Yes, you can. However, in such cases the "can't attack" effect prevents making the attack.
- Date
- Question
What happens if this card's effect activates twice and 2 of my opponent's Digimon gain the "[Start of Your Main Phase] Attack with this Digimon" effect?
- Answer
At the start of your opponent's main phase, the effects gained from this card's effect are triggered at the same time, and your opponent determines which one activates first.
After effects such as [When Attacking] have activated, and before the counter timing occurs, it is time to activate the effect of the 2nd Digimon that was pending activation. However, since the 1st Digimon is already attacking, the effect ends without an attack made.
As a result, only the Digimon whose effect was activated first can attack.
- Date
- Question
What happens if this card's effect is activated on an opponent's Digimon with an "[Opponent's Turn] This Digimon isn't affected by your opponent's effects" effect?
- Answer
You can still choose a "this Digimon isn't affected by your opponent's effects" Digimon as a target for the effect. As soon as it becomes your opponent's turn, that opposing Digimon loses the "this Digimon isn't affected by your opponent's effects" effect and is affected by this card's effect.
As a result, the attack occurs at the start of the main phase.
- Releases

- Genre
- Booster Pack
- Release Name
- ACROSS TIME [BT-12]
- Official Product Page
- Date
- Notes
- BOOSTER ACROSS TIME [BT12]



