Equips some commandsDescription
There are two ways to obtain Master Materia. At Cosmo Canyon, the player can bring a mastered Steal, Sense, Throw, Morph, Deathblow, Manipulate, and Mime, and then interact with the yellow Huge Materia. The second is to give the Kalm traveler an Earth Harp, which is earned from defeating the Emerald Weapon.
Master Command provides the user with the abilities Steal, Sense, Throw, Coin, Morph, D.blow, Manip., and Mime. This can save many Materia slots. It can be paired with Support Materia, which will add its paired effects to all commands, even Attack and Item. This can lead to some interesting combinations, such as absorbing HP with every normal hit with HP Absorb equipped to Master Command, but the effect is also reversed and the player would also lose HP when using curatives.
Master Command comes with no stat changes, and equipping it saves a great amount of Materia slots. As many of the abilities deal damage, it is best given to characters with a high Strength stat: Cloud, Tifa, and Cid. It is less useful on Barret, however, as his ultimate weapon, Missing Score, deals damage based on equipped AP, for which Master Command can have none.