Betaineers
Betaineers are a fictional group of individuals or entities that exist within a specific narrative context, such as a book, game, or film. The term "Betaineer" itself is a portmanteau, likely combining "betrayal" and a suffix indicating a group or profession, such as "-er" or "-eer." This suggests that Betaineers are characterized by their tendency towards treachery, deception, or working against the interests of others, perhaps for personal gain or as part of a larger conspiracy.
The specific nature and motivations of Betaineers would depend entirely on the fictional world they inhabit.