Now since I have mentioned The Watcher more than a few times, I figure its about time i provide a clear explanation for you all before questions start piling up. First let me make it clear that he will not be a full character, being a former council member himself, being too stronk is in the job description. As such he is limited to being almost excusively a plot device, to be used during significant events or when a wrench in someones plans is needed. Indeed, the only reason he's even allowed that much freedom is simply because he takes a slightly more active role in our divine pantheon than the average council member.
First lets clarify exactly WHAT he is.
The Watcher, as I have said, Is a former council member. He is a being that values choice and taking action above all else. This leads into his reason as to why he left the council. He felt the council was too restrictive, leaving little room for personal choice, and he grew tired of watching the same, predictable choices being made over and over again. In short, he became really, really, really, really, bored out of his gourd. And so he broke off from the council. Now already this brings up the very important question, if the council throws a fit over rogue gods, why in all things divine have they not done anything about a rogue council member!? Well the official reason is because he has not technically directly gone against the council and they have other things to worry about than a rogue council member who meddles in the events of mortals and sometimes gods but otherwise pretty much keeps to himself...for the most part. The unofficial reason is because The Watcher is more than simply a wrench in the works.
Try thinking of it this way. A rogue god is a wrench in the works. The Watcher is akin to a device specifically built to throw wrenches not unlike machine-guns do with bullets. This is what The Watcher is when unprovoked. Now imagine how bad it would be if the council decided to "poke the bear" as it were. In short, the council doesn't do anything because trying to do something about it would cause more headache's than it would fix. It's just much esier to plug the leaks rather than drain the ocean.
Second, we should address what exactly he is capable of.
The Watcher could do many things but here is what he can do, what he won't do, and what he will do. The Watcher possesses the rare ability of omniscience. In this case what that means is that he can see all possible paths and choices that can be made by anything capable of making choices. He can see any choice than has been made, he can see any choice that can be made, but what he can't see, is what choice WILL be made. This is what interests The Watcher the most. He can observe anything he wishes to and pays special attention to choices he's never seen made before, or at least, choices that are difficult TO make. At some points in time, The Watcher may find certain individuals who could take steps on the road to multiple, world or even fate changing choices. If only they had the means or the ability to make such choices. In these cases, the Watcher uses his vast power to either grant them magical powers, increased physical abilities, or maybe even a simple piece of information that could allow them to make ever more choices. One thing he will never do, however, is say or do anything that may limit your choices or steer you along a particular path. Do not mistake my words however, he also never lies, as that would be giving you the alusion to choices that don't exist. But at the same time, he will never give you a straight answer, indeed you are encouraged to never ask him for advice, as any advice he gives will often leave you with more questions and choices to make than you started with. As for the types of powers and abilities he can grant, if it is a player character it shouldn't go any higher than what would be allowed on a character app. If it is a plot npc, the room for powers is....much greater. Otherwise anything is possible with what he can provide. Keep in mind though, all of his gifts are temporary.
Next i'll discuss some common misconceptions of the Watcher that may arise.
Some believe the Watcher has some ulterior motive for what he does, that he has some grand plot in the works that only he and possibly the council knows about. They believe that The Watcher is secretly manipulating them for his own gain in some way. This is false, The Watcher does not have a plan, he has no ulterior motive, and he most certainly is NOT manipulating you. All the Watcher cares about is to observe what a random element will do when provided with choices to make. Manipulating you in any way would ruin the suspense of what choices you make and would merely make the upcoming events more predictable. Predictable is boring. Here's a free tip, if you don't want to gain the Watcher's attention, be predictable.
Some people believe that when the Watcher provides one of his gifts, he has made that individual his champion, one who represents the watcher and who is guided by divine intervention towards great acts, both good and bad. This is only partially true. First and foremost, the individual he has blessed, is NOT his champion. He does not represent the Watchers interest nor does he serve the Watcher in any way. In fact, the Watcher does not even care what these individuals actually DO with their powers. As for them being led to greatness by divine intervention, the Watcher does not lead them to greatness. If the Watcher grants his powwer to an individual it means that the individual is already destined for greatness, he just wants a little more variety in the individuals choices.
Finally lets talk about what the Watchers purpose is and how he is to be used. First lets make it clear that the Watcher will NEVER directly enter into a confrontation or event, nor contribute in any direct way. Doing so is against his own rules and a godly being of this magnitude is simply too powerful to be allowed to do so without being involved in a plot solely revolving around the watcher as a pure antagonist. Overall, the watcher was created to be a wrench in the works, when someone needs something to go wrong the Watchers meddling will do the trick. When an otherwise perfect plan needs a rogue element on the table, the watcher is likely to be that rogue element. The Watcher does not care for the machinations and plots of either gods, the council, or anybody else for that matter. In other words the Watcher is here to provide a problem when you need a problem, provide an important character when you need an important character, or just an interested and possibly molevolent third party in a plot.