Drahmin first appeared in Mortal Kombat: Deadly Alliance. He wields an iron club mounted on his right arm, and the mask he wears is an artifact called the Face of Kun-Lo. It was when he donned his this mask that he could focus his power into a precise lethal fighting style that made him into the legendary Oni-Tormentor.
Once a ruthless and powerful warlord, Drahmin fell from the eyes of mortal man when he was banished to the Netherrealm. It was here that abysmal powers began to redesign the fallen ruler into an Oni-Demon, feared and famed throughout the empires of the Outworld. Drahmin's sentence to the depths of the Netherrealm lasted for 500 years. His body and sanity ravaged by the unspeakable tortures inflicted upon him. The end product of these hideous machinations was a being ruled by an unquenchable insane fury.
Drahmin, along with Moloch, would eventually stumble upon Scorpion and Quan Chi locked in kombat. Quan Chi pleaded for protection from the two Oni, and in return, he would free them from the Netherrealm. The two agreed and led Quan Chi to an ancient structure rumored to be a portal to other realms. Before opening the portal, Scorpion attacked. With Drahmin and Moloch distracted, Quan Chi passed through the portal, leaving the two Oni behind. However, the two managed to escape through the portal before it closed completely.
Now free, Drahmin and Moloch began searching for Quan Chi. Shang Tsung would eventually employ them as a safeguard against Quan Chi in the newly formed Deadly Alliance in return for a promise of revenge.
While waiting for their opportunity, Drahmin and Moloch once again encounter Scorpion. They defeat him and cast his body into the Soulnado inside Shang Tsung's palace.
In Mortal Kombat: Armageddon, Drahmin is once again wandering the depths of the Netherrealm. He eventually encounters Taven and the two fight, but he is defeated. In his game ending, the power of the gods gets infused into his mask after defeating Blaze. This causes Drahmin to grow three times his normal size, and he kills Moloch. The game states that his bloodlust has only just begun.
Alignment:
Alignment: Evil
Mortal Kombat: Deadly Alliance

The Oni Tormentor Drahmin resided in the 5th plane of the Netherealm for centuries. It was therefore no surprise to Moloch that Drahmin would so readily accept Quan Chi's offer of freedom from that realm in return for protection from the ninja spectre Scorpion. Drahmin and Moloch savagely brutalized Scorpion whenever he made a move for Quan Chi. It would not be long before they would be released upon the world of the living and taste mortal flesh once more.
Drahmin had led Quan Chi to a structure that housed the remnants of ancient tablets and runestones dating back to the creation of the realms. Quan Chi's eye was caught by a tablet with an image that bore a striking resemblance to his amulet. The engraved writing revealed the amulet's hidden power to control inter-realm portals. Breaking his promise, Quan Chi betrayed Moloch and Drahmin and used the amulet to escape the Netherrealm without them. Unknown to Quan Chi, however, the two Oni also escaped and are now thirsty for revenge.
Mortal Kombat: Tournament Edition

The Oni Tormentor Drahmin had resided in the 5th plane of the Netherealm for centuries. It was therefore no surprise to Moloch that Drahmin would so readily accept Quan Chi's offer of freedom from that realm in return for protection from the ninja spectre Scorpion. Drahmin and Moloch savagely brutalized Scorpion whenever he a made a move for Quan Chi. It would not be long before they would be released upon the world of the living and taste mortal flesh once more.
Mortal Kombat: Deadly Alliance

Sent by the sorcerer Shang Tsung, the two Oni known as Drahmin and Moloch confronted Quan Chi, enraged that he had tried to leave them stranded in the bowels of the Netherealm. In the battle that ensued, Drahmin leapt at Quan Chi and both kombatants stumbled into the Inner Sanctum Chamber.
Moments later, Drahmin emerged from the chamber altered from his previous form.
Mortal Kombat: Armageddon

The energy of Blaze unlocked the life force residing within Drahmin's mask. Unable to remove it, Drahmin became possessed by it and grew to three times his original size. The power of the mask also fueled the rage within him. Unable to contain his fury, Drahmin turned on his former ally, Moloch, in an epic battle of demons. Moloch was defeated, but Drahmin's bloodlust has only just begun!