I am designing for a game that consist of characters who have unique offensive skills and other abilities such as building, repairing, etc. Players can control multiple of such characters.

I'm thinking of putting all of such skills and abilities into individual commands. A static controller would register all of these commands into a static command list. The static list would consist of all the available skills and abilities of all the characters in the game. So when a player selects one of the characters and click on a button on the UI to cast a spell or perform an ability, the View would call the static controller to fetch the desired command from the list and execute it.

What I'm not sure of however if this is a good design given that I'm building my game in Unity. I am thinking I could have made all the skills and abilities as individual components, which would then be attached to the GameObjects representing the characters in the game. Then the UI would need to hold the GameObject of the character and then execute the command.

What would be a better design and practice for a game that I am designing?