^ Whenever you have a guest character, the total experience points you obtain from a battle is divided by 4 (as opposed to 3 when you have your normal three-ally party). Each of your characters then get that divided portion. Therefore, each of them ends up with less exp with a guest character than he would otherwise if you have your normal three-ally party.

So if you want to chain foes in order to level up, it's best to wait until your guest character leaves your party.


If you're chaining foes for loot to obtain gil, ingredients for high-end weapons, etc., you can cast Break on your guest character and temporarily put him in Stone status. This way, he won't end up breaking your chains. The gambits of guest characters are generally set to attack any foe in sight.