FantasyAsset/Assets/Scripts/Abilities/Ability.cs

using UnityEngine;

public abstract class Ability : ScriptableObject
{
    [Header("Meta")]
    public string displayName = "Ability";
    public string key = "";
    public Sprite icon;

    [Header("Cost & Cooldown")]
    public float manaCost = 10f;
    public float cooldown = 2f;

    [TextArea] public string description;

    // Called after cost/cooldown checks pass
    public abstract void Activate(AbilityUser user);

    // Optional pre-checks (override if needed)
    public virtual bool CanActivate(AbilityUser user) => true;
}