Sadist

Sadist is a skill in Fallout: Brotherhood of Steel.

Effects
With this skill, every time you kill a creature, you'll receive +5 (up to a maximum +25) hit points when playing Nadia or Patty or receive +2 (up to a maximum +10) hit points for playing Cain.

Points requirements

 * 1 Rank: 16 points (+5 HP for Nadia and Patty, +2 HP for Cain)
 * 2 Rank: 32 points (+10 HP for Nadia and Patty, +4 HP for Cain)
 * 3 Rank: 48 points (+15 HP for Nadia and Patty, +6 HP for Cain)
 * 4 Rank: 64 points (+20 HP for Nadia and Patty, +8 HP for Cain)
 * 5 Rank: 80 points (+25 HP for Nadia and Patty, +10 HP for Cain)

Behind the scenes
The Pip-Boy image is an amalgamation of three popular horror film killers: Freddy Kruger from A Nightmare on Elm Street, Jason Vorhees from Friday the 13th and Leatherface from The Texas Chainsaw Massacre.