Abominable/Fallout: New Vegas

Abominable is a challenge perk in Fallout: New Vegas.

Effects
This perk provides a damage bonus of against abomination-type creatures. With the first rank (50 kills), you get 3% bonus to damage against abominations; the second rank (100 kills) provides a 6% bonus, and the final rank (150 kills) confers a 10% bonus.

Abominations include: aliens, centaurs, deathclaws, Ghost people, nightstalkers, spore carriers, spore plants, Think tanks, tunnelers and Mr. House.