The Harbingers

Unlike The Guardians The Harbingers have only ever had one group use the name they are usually a dark representation of the guardians power with the exception of the harbinger of death the opposite to the Guardian of life. some Guardians have attempted to merge their dark side and their light side to have the powers of the Harbingers as-well when greater threats arose, the only successful attempt was made by King Tony Sixwing during The Second Source War though a side effect of this is he can loose control at times and if he doesn't stop using the power after a while his body seizes in pain and he has also been known to go emotionless when using its power, he is the only Guardian who is also technically a Harbinger