Entity 303

Mason Dreyfus Gallus was a Tulanese M.E.S.H. and the primary antagonist of Season 2 of PGXD Adventures and the miniseries PGXD_303.

Origins
Prior to his life of crime, Gallus was a Redstone Technician at PGXD_GotPvP. However, after that branch went into bankruptcy, Gallus lost his job and turned to a life of crime in order to make end's meet.

Using a white cloak and a black ski mask to conceal his identity, Gallus committed several robberies of shops around southeastern Tulan.

One night, Gallus broke into an apartment that belonged to the serial killer Romeo Slasher. He was abducted and taken to a warehouse where he was brutally tortured, with both of his arms and his legs being sliced off and his body being severely burned with hydrofluoric acid. After being left for dead, Gallus managed to free himself from his shackles and climb into the street, where he was found and taken to a hospital.

In order to survive, Gallus underwent mechanical enhancement with the help of Vampire Viper.

Death
After killing Vampire Viper, Gallus went to the old site of PGXD_GotPvP where he discovered Fxceless_Trees. The two talked briefly before fighting. Fxceless eventually led Gallus into the animatronic endoskeleteon of the prototype Chuck E. Cheese. Eventually, they ended up in the torso of the animatronic, which still contained active redstone wiring. Fxceless used this against Gallus, throwing him onto the wiring before activating the main power switch, electrocuting him and causing his power circuits to overload, effectively paralyzing him. Fxceless finished him off by slitting his throat with Vampire Viper's Dagger, trapping what remained of his soul and killing him.