Opponent Rated Conflict Simulacrum
Any race of creation that is low power, plentiful, and politically correct to dislike and kill in mass numbers. All will have bad habits such as farting in elevators, eating babies, clubbing with seals, and writing Fringeworthy fan fiction.
Examples are of course Orcs from LotR and D&D, Any race of goblins, Melor, Stormtroppers (space or Nazi) and telemarketers.
Orcs will offer themselves as target dummies whose motivation does not need to be questioned. They are not generally dangerous in single numbers but can be overwhelming in the more usual vast and smelly hordes.