Here's another specialization, this one's exclusively a dwarven one, I'm really interested in feedback!
Legionnaire of the Dead – Dwarf Warrior or Rogue, Requirements: Willpower 3, the character must willingly let go of all his material goods to his heirs, if he has any, and join the Legion of the Dead, for the rest of the dwarven society he is as good as dead.
A great deal of importance is placed on the appearance of nobility and justice amongst the dwarves. The actions of one family member can often severely diminish an entire House's place in the social hierarchy of the dwarves. Some disgraced dwarves will choose to go through a ceremonial "death" to clear their names and the names of their families. They walk out of Orzammar into the Deep Roads to fight darkspawn for the rest of their lives as a member of the Legion of the Dead. When one of their number dies, the Legion will bury him or her within the stone, and celebrate the fact that the fallen has finally found peace.
(The fluff text above is taken from the Dragon Age wiki)
Novice: Life Debt – The Legionnaire has nothing left to lose, from this fatalism he draws strength. He adds +2 to any Willpower roll to resist fear/inimidation, this bonus applies even against magical effects.
Journeyman: Bloody Exchange – The Legionnaire will sell his life dearly, each time he is successfully damaged by a Darkspawn, (at least 1+ damage) he can perform a counterattack against his enemy. The character can use this power up to once per round, this counterattack cannot produce any kind of stunts.
Master: Ferocity – When up against any type of Darkspawn, the Legionnaire fights with unequaled ferocity. All combat stunts cost -1 point when the dwarf attacks Darkspawn, this reduction stacks with any other talent/power that reduces the cost of specific stunts (minimum 1).

