
So heres what i was thinking for injuries.
Brain damage: It reduces Int and you get it from getting to much concussion or blunt trauma.
Crippling injury: Reduces Str and Agi and you get it from getting to much deep cuts or fell slash or cruel incision.
Slight Insanity: Reduces Int and Psy and you get it from getting to many nidburns. Basically if you came out of a nidbane attack alive but just barely alive you would go insane.
Horribly Ugly: Reduces Charisma and you get it from getting to much Unfaced.
EDIT: also if you get too much Unfaced it starts to show up on your chars face. Also new injury.
Scarring: very slightly reduces Charisma but Very slightly raises Psy and you get it from too much scrapes and cuts and knicks and knacks.