necromancer

In my game I want to have the player be able to revive dead enemy's which I can do but I need to know how I can lock up the number of people in your party to three.

For example I have at least 10 unique characters thought up but I want you to only be able to use three at a time with one execption. That is when the necromancer revives an enemy then that will take up the forth slot.


Any help much appreciated.


So my question is can I have the slots of characters limited to three even when using a party switching system?