Erron Black's exact origins are unknown. Born on Earth, he somehow found himself in Outworld. There he spent years wandering its vast territories, selling his amazing weaponry skills to local warlords. Now in the employ of the emperor, Kotal Kahn, Black shows no inclination to return to Earthrealm--or aid them in their present struggles.
Nearly 150 years ago, Erron Black had been hired by Shang Tsung to assassinate an Earthrealm warrior.
In return, Shang had slowed Black's aging process. He could therefore afford to be patient.
If an employer wanted someone dead, they would be in time.
A team of young Earthrealm warriors had caused Erron Black's current employer, Kotal Kahn, much inconvenience.
With the patience of a viper, Black eliminated them all.