I think in the chess case this would just cause a lot of strange games where one player has used it, and one hasn't and therefore the player who hasn't can prob

I think in the chess case this would just cause a lot of strange games where one player has used it, and one hasn't and therefore the player who hasn't can probably win more or less at will. Games where both players still have it will probably end up drawing because going into complications is just too risky. There will be too many strange ways one player could suddenly win. I realise you're just using it as an example here, I just can't help but analyse a chess variant when I see one.