Shadow Tag is an ability in the Pokémon series that prohibits opposing Pokémon from fleeing or switching out during battle. This ability can provide a significant edge in competitive gameplay, enabling a user to strategically isolate and debilitate, or even eliminate, central opponents. There are, however, certain exceptions to this effect: Pokémon equipped with the Shadow Tag ability themselves, Ghost-type Pokémon, and Pokémon carrying a Shed Shell can bypass this constraint. Also, if a Pokémon possessing the Shadow Tag ability switches out, the restriction is lifted, allowing the opponent to switch out as well.
Prominent Pokémon endowed with the Shadow Tag ability encompass Wobbuffet and Gothitelle. Wobbuffet has notably gained substantial recognition within competitive domains, owing to its high HP and access to moves such as Mirror Coat and Counter, adept at reversing an opponent's offensive tactics.
A few fascinating points about Shadow Tag include: