Has a chance (X%) of raising the user's critical-hit rate by one stat rank when its attack move hits. If the move has the multistrike effect tag, has a chance (X%) of raising the user's critical-hit rate by one stat rank for each hit.
Stacking Strike 9
Raises the user's critical-hit rate by one stat rank when its attack move hits. If the move has the multistrike effect tag, raises the user's critical-hit rate by one stat rank for each hit.
Stacking Strike (Japanese: 命中時急所率アップCritical Hit Rate Boost During Direct Hit) is a family of skills in Pokémon Masters EX.
Effect
When the Pokémon successfully lands an attack on the target, it has a chance of raising the user's critical-hit rate by one stat rank. If the Pokémon uses a move with the multistrike effect tag, such as Bullet Seed or Icicle Spear, each successful hit will have its own chance of raising the user's critical-hit rate by one stat rank. The skill can range from Stacking Strike 1 to Stacking Strike 9, with higher numbered skills resulting in a higher chance of activation after each hit. Stacking Strike 9 will always raise the user's critical-hit rate by one stat rank after each hit. Currently, only Stacking Strike 9 is available on scoutable sync pairs. The skill applies to the Pokémon's usual attack moves, including buddy moves, but not sync moves or max moves.
buddy moves, but not sync moves or 
max moves.
