Natural Magics, magic inherent in a people or culture. For instance...
Beornings for instance can spirit walk during the night.
The Mirkwood Elves can create lights that attracts mortal men.
Hobbits are good at disappearing from sight, etc.
Its all out of the books, very little to fabrication on the designers part.
Also on power levels, from my read no one really outshines the other a lot. Since the game isn't about "party tactical balance" but about recreating the fell of middle earth. Each people have their strengths, so spotlight time (the best kind of balance) can be passed around easy enough (without having to rely totally on the GM).