I mean, is it possible to exist a character with all powers and 10000 points of strength, endurance, psyche, warfare in a distant shadow? Is it possible that a player's shadow defeating the player? Are there big dragon armies which can conquer Amber? Are there people who can shift shadow but doesn't have Amber or Chaos blood?
In shadow, if you can imagine it, it exists someplace. So I would answer your question with a yes. But remember, there is a divide between OOC and IC determinations on what is in shadow. To say, as a player, your character is seeking out a shadow where the denizens are all at around 1000 points in strength, Endurance, Psyche and warfare is not really a description I as a GM would allow for your character to locate anything. After all, you would be using descriptors that have no meaning inside the game. You could tell the GM your character was seeking a shadow where giants ruled the world and played baseball with boulders. Thats a shadow your character could find. You could say you sought a shadow ruled by giant dragons that breathed nuclear radiation. And you could find a shadow where your character had a shadow self, bigger and stronger then himself. However, as powerful as these creatures might be, they would likely never pose a true threat to Amber as they would lack any real method of reaching Amber. Shadows are like parallel dimensions, they can be right on top of us and yet completely unreachable as they do not connect in a way that is spatially or even temporally meaningful for a creature capable of moving only within 3 or 4 dimensions. For this reason, a true Amberite of the blood must personally lead their army when marching through shadow. They must open a way through shadow which their host can then follow. Chaosians tend to do this with Black Roads or channels.
Now, assuming that one of these shadows found a means to march their powerful army through shadow and to eventually face Amber itself(and based on the books, Zelazny makes mention that just such events do occasionally happen), they still must get their army from point A--their shadow, to point Z--Amber. Amberites can throw any number of obstacles in the path of such an army and through sheer attrition, whittle that army down to a manageable threat by the time the enemy makes it to the foot of Kolvir or the forest of Arden. There is a saying, there is always someone bigger. So why not make that powerful army march through a hostile shadow, or series of shadows inhabited by even bigger baddies? Or just keep throwing shadows in their path until they either die of old age or simply give up. The resources open to the Eternal City are many (we wont even mention what the Jewel of Judgement allows in Amber's defense).
As a player, if I say "I want to go to a shadow where the population is full of people who are stronger than any Amberite in any ways, who will obey only me (because of their holy book, legend, etc.)" what would you say as a GM? Is it impossible or is it only hard? If I walk through slow time shadows, it will be quick enough, I think.
I'd say, no problem! And you'd likely find that shadow. Though as a GM, I would want to know exactly what ways they should be stronger. Then if you decided to use that army of zealots, please refer back up to where I mention what usually happens to armies marching on Amber:)
If you opted to stay, then that would be good too. If your character is fine with ruling a shadow of the real thing, more power to him and long may he reign.
4) If we think time travel as shifting shadow, does it mean DeLorean can shift shadow?
I'm in the camp that says space and time are one fabric and in shadow they only have one direction. Straight ahead. For this reason, Corwin can never reclaim what he lost with his first Avalon. He can find a near perfect shadow of it, but not "it". Thus when you move back in time, you are traveling to adjacent shadows in an earlier timeline.
Thanks, this part helped me understand. I thought that everything I can imagine exist in shadow. But I understand now that imaginations of mine must be adequate to this "reality" law. So, shadows don't contain all the imaginations. They contain adequate ones. (Am I right? )
Now this is an interesting point you raise, Corwin mentions that all Amberites reach a point in shadow, past which they can go no further. Is this because, they can travel "only" to those shadows they can imagine? I believe it is. Thus a limited imagination means a limited amount of traveling space. And now if we take this a step further, into a macro perception of what lies out in shadow, we can say that as a whole, the Amberites have set standards upon what they are willing to believe or imagine. They are careful, as well not to imbibe anything that can let their imagination run too wild. We see the effects of a bad acid trip on Luke. He and Corwin are nearly killed by a frumious bandersnatch down in the rabbit hole!
But, what if their collective conscious only allows for a finite amount of circumstances? Why then you could easily say that some shadows just don't fit the mold.
As for time, well, time is it's own hairy mess and Corwin surmises that understanding all of it's ins and outs may have started Dworkin down the road to insanity. In a nutshell though, time, like space can take many forms. It can run much faster then that in Amber--much like the rapid run of time within Narnia, where C.S. Lewis had his children protagonists grow into adulthood and yet still return to their earth after only a few minutes. Such shadows are great for when you need to heal a wound or finish reading Moby Dick before going to the Amber book-of-the-month meeting.
Anyway, hope this helps:)