Question: How to allow a list to take derived classes

I have a class Skill that inherits monobehaviour and a class Attack that inherits Skill.

I then have a list of Skills but it doesn't let me add Attack to the list.

Any idea why this isn't working or how to get it to work. Do I have to use an array instead of a list?

 

I was able to do this by adding the Attack skill to a Game object and saving it as a prefab. I was then able to drag the prefab into the list of skills.

 

Because "Skill" inherits "monobehavior" - it will always have to be attached to a game object to function. Personally I would try to keep stats and game mechanics classes separate from inheriting from monobehavior and just wrap them in monobehavior classes as needed, but it depends on what you're doing.