Psychic Terrain edge cases

[Aeliko]

Psychic Terrain + Encore + last used move is non-priority move + current move is priority move interaction

A non-priority move caused to have priority by Encore ignores Psychic Terrain protection (and maybe also Armor Tail).

If Pokémon A uses Tackle on Turn 1 and then clicks Quick Attack on Turn 2 while a faster Prankster Pokémon B uses Encore on it, Psychic Terrain should block the move.

https://www.smogon.com/forums/threads/encore-boosted-priority-vs-priority-protection-effects.3740004/#post-10200282

Psychic Terrain should block priority Perish Song and some moves

https://www.smogon.com/forums/threads/implementation-of-field-and-all-target-moves.3748331/