Original Question from Livio ElTito: How doed future sight interact with psychic terrain?I just tested to see if the mechanics changed, and from these replays it doesn't seem like they did. I put the damage that the moves shouldve done in the chat.
The original question here was how Future Sight relates to Psychic Terrain, not Choice Specs. The Choice Specs (1.5x) boost is lost when the Pokémon is swapped out, yes. But the Psychic Terrain (1.3x) boost is not lost, so long as terrain remains up when the move hits. I believe that is where your confusion lies. You have answered the wrong (but equally interesting) question.
- If a choice specs Pokémon swaps out after using future sight, the 1.5x boost is lost.
- If future sight hits when Psychic Terrain is up, even if the original Pokémon was swapped out, it still receives a 1.3x power boost. If Terrain isn't up when the move hits, it doesn't receive the 1.3x power boost. This is the answer to the original question.