Although Groudon was created not to conquer the sea, but solely to defend the land, in its ceaseless war against Kyogre it was ultimately convinced that the sea must be destroyed, no matter the cost. It is a god of volcanoes and land reclamation, of desert and drought, but also of caves and homes which shelter men from the rain.

Team Magma has its origins primarily in the people of Hoenn's mountains and its one desert, nomadic peoples who survived by hunting and raiding and hated the ocean. They hated it partially because water pokemon bested them in combat, but mostly because whenever the sea or rivers expanded, so did the people of the coast expand inland to steal their pastures and convert it to farmland. Groudon is also honored by those who lost homes to piracy or storms and sought revenge, or by those who made a living on volcanic islands or other lands recently reclaimed from the sea, and where Groudon is followed Team Magma is never far behind.

Centuries of warfare and megalomania on the part of religious leaders and gods alike has driven Magma, like Aqua, to madness. Today, they seek to build over the ocean as a cure for overpopulation, and they try to level mountains and fill in continental shelves and dam rivers and end rainfall so the water level could drop. There is at times merit in some of their ideas; for instance, cities have benefited from land reclamation technology pioneered by Magma. But if ever implemented on a global scale they could be nothing but a disaster, and Groudon's dream is far larger than Hoenn.

If they were ever victorious, Team Magma and Groudon would leave the planet as barren and lifeless as Mars before they realized their folly.