Geomancer

The Geomancer, also known as an Elementalist or Taoist, is a job class that appears in various games in the series. Geomancers use bells as weapons, and equip light tunics as armor. Their special ability allows them to use the terrain they are fighting on as an attack. They can also walk across lava.

Mog's Dance ability works similar to the Terrain ability.

Final Fantasy Tactics Advance
Unlike previous games, Elementalists' abilities are not dependent on the terrain on which they are standing. They can use any of the Spirit Magic attacks that they have mastered, which inflict elemental damage and usually cause a status ailment.