Risk / reward sounds like FFXI DRK. This DRK is not a DPS, it's a tank (sadly-but will do). I like the absorb ideas. Sponging up DEX/STR will be nice for the parry DRK will supposedly use. ABS VIT will be nice for HP boosts. So many possibilities with absorbs. Acc/Eva/Int...etc. These absorb spells would definitely generate threat. I can also see DRK using enfeeblements to assist in threat gen and their specialized tanking. The way WS are set up now, perform an action that has X effect, I can see this working. Spells, if DRK has any at all, will probably be like mudra's. Castable in between WS.

WS might have added effect of weight, acc down, blind, etc. The casting, if mudra like, cold be absorb spells, enfeebs, etc.

All I know is I can't wait to unlock that shiz and lvl it up.