YachtDice/Assets/Scripts/Modifiers/ModifierRuntime.cs

using System;

[Serializable]
public sealed class ModifierRuntime
{
    public string ModifierId;
    public bool IsActive;
    public int RemainingUses;

    [NonSerialized] public ModifierData Data;

    public bool IsExpired => Data != null &&
                             Data.Durability == ModifierDurability.LimitedUses &&
                             RemainingUses <= 0;

    public void ConsumeUse()
    {
        if (Data == null) return;
        if (Data.Durability != ModifierDurability.LimitedUses) return;

        RemainingUses--;
    }

    public static ModifierRuntime Create(ModifierData data)
    {
        return new ModifierRuntime
        {
            ModifierId = data.Id,
            IsActive = false,
            RemainingUses = data.Durability == ModifierDurability.LimitedUses ? data.MaxUses : -1,
            Data = data
        };
    }
}