When this Pokemon has more than 1/2 its maximum HP and takes damage from an attack bringing it to 1/2 or less of its maximum HP, its Attack, Special Attack, and Speed are raised by 1 stage, and its Defense and Speed Special Defense are lowered by 1 stage.
The description accidentally uses Spe instead of SpD, which would make the move +Atk +SpA -Def instead of +Atk +Spa +Spe -Def -SpD.
The description accidentally uses Spe instead of SpD, which would make the move +Atk +SpA -Def instead of +Atk +Spa +Spe -Def -SpD.