Travel between different universes can be a tricky thing. Sometimes, time passes more quickly in your home universe, so that when you return from a trip to another one, everyone you know is dead. Other times, you can spend weeks, months, or even …| TV Tropes
A statement regarding some ambiguous or undefined aspect of a work, the Word of God comes from someone considered to be the ultimate authority, such as the creator, director or producer. Such edicts can even go against events as were broadcast, …| TV Tropes
A cause of many or most of the bad happenings in a story, and often the main cause of most or all of them. A Big Bad could be a character with Evil Plans or it could be an omnipresent situation, such as a comet heading towards the Earth. In a …| TV Tropes