Interceptor

Interceptor is Shadow's loyal pet dog in Final Fantasy VI.

If the player does not save Shadow from the Floating Continent, Interceptor becomes Relm's companion in the World of Ruin. Interceptor is technically a more-or-less permanent status effect, and can be traded around between characters with the Rippler spell (though the player has to manipulate enemies into using it).

Sometimes, when Shadow is struck in battle, Interceptor will "intercept" the attack and counterattack. Interceptor's attacks are Wind Fang and Takedown.