I think I touched on 'Trademarks" briefly in another post, but I'm going to delve into them a bit deeper tonight. They are a sorta like feats.
I'll let the author explain a bit better then me:
Trademarks are the unique elements of a character’s makeup that set him apart from others of his Calling. These abilities, or qualities, are powerful additions to the nature of the PC, so choose carefully. They can and should impact the course of your character’s life, making his path a unique one, especially when combined with his ranks on the Character Wheel.Some Trademarks are combat oriented, some are non-comabt oriented and some are both. As you can guess, some are more powerful then others. One of my favorites is Holy-Man Training. It adds Holy-Man prayers (spells) to you character's abilities, tho' he only gains half as many as a true Holy-Man. Instant Paladin if you add this to a fighter.
A Character starts with 2 trademarks and gains one every odd level. Humans gain an extra one at creation, for 3 to start.
Characters in The Secret Fire aren't much more special then the average person. Stats are rolled on 3D6. The amount of damage a character can withstand is about the same as a normal person, so trademarks can be the difference between life and death. It's the edge that the players get.