Stance Change is exclusive to Aegislash. When using a damage-dealing move, Aegislash switches to its Blade Forme. When using the move King's Shield, Aegislash switches to its Shield Forme.
The form change occurs when the appropriate move is selected, regardless of whether the attack goes ahead (e.g. prevented by paralysis).
| X Y O.Ruby A.Sapphire | The Pokémon changes form depending on how it battles. |
| Sun Moon Ultra Sun Ultra Moon | The Pokémon changes its form to Blade Forme when it uses an attack move, and changes to Shield Forme when it uses King’s Shield. |
| Sword Shield B.Diamond S.Pearl | The Pokémon changes its form to Blade Forme when it uses an attack move and changes to Shield Forme when it uses King’s Shield. |
| English | Stance Change |
|---|---|
| Spanish | Cambio Táctico |
| Italian | Accendilotta |
| Japanese | バトルスイッチ (Battle Switch) |
| German | Taktikwechsel |
| French | Déclic Tactique |