Casting
The sphere inquisitor may combine spheres and talents to create magical effects. The sphere inquisitor is considered a Mid-Caster. (Note: All casters gain 2 bonus talents and a casting tradition the first time they gain the casting class feature.)
This replaces the spells class feature.
Spell Pool
The sphere inquisitor gains a small reservoir of energy she can call on to create truly wondrous effects, called a spell pool. This pool contains a number of spell points equal to her sphere inquisitor level + her casting ability modifier (minimum 1). This pool replenishes once per day after roughly 8 hours of rest.
Magic Talents
A sphere inquisitor gains 3/4ths of a magic talent every level (the same progression as she gains caster levels).
U: Part of Ultimate Spheres of Power and does not need to be bought separately from that book