Gaia (Final Fantasy V)

Gaia, known as Terrain in the RPGe translation, and Earth in the PlayStation version, is the ability of Geomancer job in Final Fantasy V. It is an offensive skillset whose effects vary depending on the terrain on which the current battle is taking place. There may be several different Gaia effects that may take place in a single type of battlefield.

The abilities are randomly selected depending on the current terrain and the character's level. The higher the character's level, the better abilities can be used. To choose which ability to use, the game generates a random number between 0 and the character's level. Each area has four abilities which can be used. If the random number is 0-11, Ability 1 is used, if between 0-21 Ability 2 is used and between 21-51 Ability 3 is selected. The Ability 4 of the set can thus only be used if the character is a level of above 51.

Final Fantasy V: Algorithms/Stats FAQ by instructrtrepe contains a list of all Gaia ability sets