Bring me glory in combat!
Henzell says...
  1. +50/100/150 stealth -1/-2/-3 LOS. Remember, LOS is reciprocal, so when your LOS is reduced, so is the LOS of everything else in the dungeon. The {kobold} species has 3 levels of this mutation.
  2. Prior to 0.26, {demonspawn} could get nightstalker as a tier 2 mutation, and kobolds didn't have nightstalker.

Information based on master branch and the great LearnDB.
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