Does the move "Psych up" work for mega-evolutions?

Question

Psych up copies the opponent's stat changes. Unknown for what duration it applies. But would it copy the stat changes if the opponent mega-evolved?

Answer 1

Psych Up refers to boosts like Swords Dance, Agility, and Calm Mind. These are in a separate category from the stat gains -- and in a few cases, stat losses -- of Mega Evolution.

Answer 2

If an opposing Pokémon uses, say, Dragon Dance, then Mega Evolves the next turn, it will still have those boosts. Therefore Psych Up will still work.

Source: Knowledge

Comments

So it would copy the stat increases of an opponent's mega-evolution?

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Not base stat increases, but it will copy boosts from moves like Agility and Swords Dance.