Special Defense Reduction After Using Move on Opponent
Passive Skill
Stupefy 1–8
Has a chance (X%) of lowering the target's Sp. Def by one stat rank when a move targeting that opponent is successful.
Stupefy 9
Lowers the target's Sp. Def by one stat rank when a move targeting that opponent is successful.
Stupefy (Japanese: 相手に技後特防ダウンSpecial Defense Reduction After Using Move on Opponent) is a family of skills in Pokémon Masters EX.
Effect
When the sync pair successfully uses a move against the target, it has a chance of lowering the target's Sp. Def by one stat rank. The skill can range from Stupefy 1 to Stupefy 9, with higher numbered skills resulting in a higher chance of lowering the target's Sp. Def. Stupefy 9 will always lower the target's Sp. Def. Currently, only Stupefy 9 is available on scoutable sync pairs. The skill applies to all of the Pokémon's moves—including attack moves, status moves, and buddy moves—but not sync moves or max moves.
buddy moves—but not sync moves or 
max moves.
