Right, we wouldn't call them Jedi of course, but I kinda like the archetype.
I like these ideas: >>17379116
(btw, I also type scavenger all the time, leet speak is hard. The idea is that it was a tripcode in /x/, where the name came from)
Belief Points is similar to Mana in other games.
In other games, if you want a small fireball, you invest 10 mana. If you want a really big fireball, you invest 50 mana.
Belief Points are like that. Every time you roll the dice, belief points are at stake. If you succeed, you win some, if you lose, you lose some.
The "fluff" behind it is as follows: the Shadowside is a realm of mental and spiritual energies. Whatever you believe to be true becomes true. You can manifest things in there, either by being sure they are there, or by being really afraid they are there (which is the same thing as being sure). So everytime you try something risky (roll dice) and win, your faith in yourself and your own abilities increases. And when you fail it decreases.
Belief Points have a secondary use: if you needed to roll 20 or better, and you rolled a 15 (first of all you lose a certain amount of Belief Points right there, just for failing, but) you can choose to spend 5 Belief Points and turn the 15 into a 20. It won't give you any new Belief Points as if you had won that roll naturally, and it won't give you back the amount you lost, nor the amount you spent. But storywise, it will make you succeed that role. So, Belief Points can modify Fate, to some degree.
Maybe Fate could be somehow the core Tenet of this new Jedi faction...