Terrax was made with Magic sculpt and painted with plaid paint.Terrax was originally known as Tyros, ruler of the city Lanlak on the planetoid Birj, which was a satellite of the gas giant Marman. Terrax possessed limited powers over the elements of earth and he abused these powers in order to become tyrant over his people. Terrax was ruthless and cruel, which brought him to the attention of Galactus, who had decided that the weakness of his former Heralds had been their compassion. Galactus compelled the Fantastic Four against their will to retrieve Tyros for him, in exchange for assisting the Four in combatting the Sphinx.