Spheres are items that can be equipped to units, providing a variety of effects to the holder.
Spheres are an integral part of the game, and can benefit a unit holding one in a variety of ways, whether nullifying all status ailments or giving a percentage boost to a unit's overall stats.
Spheres can be equipped by going to Unit > Equip Sphere. They can also be equipped when viewing a unit's info.
When a Sphere Frog is fused into a unit, this gives it the ability to equip two spheres instead of the standard one. The only limit to this is that no two spheres of the same type can be equipped at the same time (e.g. A Status Boost Sphere cannot be equipped with another Status Boost Sphere).
For a list of craftable spheres, see Synthesis List.
Spheres are categorized into seven different rarities, often determining the strength of the sphere.
Spheres are categorized into different Sphere Types. Units that can equip two spheres at a time cannot be equipped with two spheres of the same Sphere Type.