The Path of Chaos.

Walking down the path of Chaos makes one feel different, and not necessarily in a good way. Roll Three dice, and refer to the charts below. The path of chaos may not cause a trait to go below zero or above the characters normal trait maximum. Each trip down the Path of Chaos costs one positive karma.
First die: area 

     1,2,3: Attributes
     4,5: Talents
     6,7: Skills
     8,9: Knowledges
     0: other traits (Extra abilities, arts, etc; chaos may not
effect karma knowledge; if none, reroll or randomly select a
special ability from a players guide or other appropriate source to
be possible gained.  You may also choose to include Willpower in
this category.)
Second die: trait
Attributes:
  1. Strength
  2. Dexterity
  3. Stamina
  4. Charisma
  5. Manipulations
  6. Appearance
  7. Perception
  8. Intelligence
  9. Wits
  10. reroll
Abilities: count down a number of traits equal to the die roll. ex: in Talents, 1 is Alertness, 2 is Athletics, 0 is Subterfuge, etc.
Special abilities: make an appropriate roll to determine which trait (if there is more than one) will be affected.
Third die: change
     1: -2
     2,3,4,5: -1
     6,7,8,9: +1
     0: +2