Rematch is a small addon to help store and recall battle pets.
Pets are stored per target.
For instance:
When you visit Aki the Chosen, if you bring up the Rematch window and hit Save, it will record under her name the pets you have out.
When you return to Aki another day, you can target her, bring up the window and hit Load to bring those pets back.
Also, while you're leveling a pet you can check 'Keep First Pet' to not swap the first pet. So when you load a target's pets it will only load the first two saved pets to fight alongside the pet you're leveling.
To summon the Rematch window you can set a key binding or /rematch.
Pets are stored per target.
For instance:
When you visit Aki the Chosen, if you bring up the Rematch window and hit Save, it will record under her name the pets you have out.
When you return to Aki another day, you can target her, bring up the window and hit Load to bring those pets back.
Also, while you're leveling a pet you can check 'Keep First Pet' to not swap the first pet. So when you load a target's pets it will only load the first two saved pets to fight alongside the pet you're leveling.
To summon the Rematch window you can set a key binding or /rematch.