In Taoist thought, good and evil, like all pairs of opposites, are man-made and the existence of one gives rise to the other automatically. The goal of the Taoist is to forget all such opposites and...
It all depends on who is the owner of the most powerful weapons. the one with the most power makes the rules.
Yes, good versus evil is actually a very common theme in literary works.
The good book is nice, kind, and loving. The bad book is mean, malicious, and cruel.
There were a couple of extra in game items in combined edition (combined as in it was combined with a booster pack) but that edition is gone now