Shadow Tag is an ability in the Pokémon series that prevents opposing Pokémon from fleeing or switching out of battle. This can be particularly advantageous in competitive play, as it allows a user to trap and systematically weaken or eliminate key opponents. However, there are exceptions to this trapping effect: Pokémon with the Shadow Tag ability themselves, Ghost-type Pokémon, and those holding a Shed Shell can bypass this restriction. Additionally, if a Pokémon with the Shadow Tag ability switches out, the opponent is then free to switch out as well.
Noteworthy Pokémon that possess the Shadow Tag ability include Wobbuffet and Gothitelle. Wobbuffet, in particular, has garnered significant attention in competitive circles due to its combination of high HP and access to moves like Mirror Coat and Counter, which can turn an opponent's offensive strategies against them.
Several interesting facts about Shadow Tag include: