Terrax the Tamer is a fictional character that appears in the comic books published by Marvel Comics.
The character first appears in Fantastic Four #211 (Oct. 1979) and was created by Marv Wolfman and John Byrne.
The character first appears as a Birjan named Tyros, the ruler of the city-state of Lanlak on the planetoid Birj. The cosmic entity Galactus selects Tyros as his next Herald, but first wishes for the superhero team the Fantastic Four to humble him. In return the cosmic entity agrees to travel to Earth to aid the heroes against a new threat, the villain Sphinx. Tyros is defeated, and brought before Galactus, who changes the petty tyrant into Terrax the Tamer. His minor control over stone was augmented to an incalculable degree. Now, he could affect all matter of rock and stone on nearly a planetary scale. His body was changed so that it would withstand the vacuum of space. Finally, Galactus gave Terrax a weapon called the cosmic axe capable of generating waves of cosmic force. Terrax travels with Galactus to Earth, and while his new master battles the Sphinx, attacks the Fantastic Four - still resenting the heroes for their role in his transformation. Terrax, however, is tricked and defeated by the Human Torch, and leaves with a victorious Galactus.