Casting
A sphere alchemist may combine spheres and talents to create magical effects. A sphere alchemist 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.)
Limited Alchemy
A sphere alchemist is not able to learn or create extracts, but retains the other uses of the alchemy ability.
This alters alchemy.
Spell Pool
A sphere alchemist gains a small reservoir of energy he can call on to create truly wondrous effects, called a spell pool. This pool contains a number of spell points equal to his level + his casting ability modifier (minimum 1). This pool replenishes once per day after roughly 8 hours of rest.
Magic Talents
A sphere alchemist gains 3/4ths of a magic talent every level (the same progression as he gains caster levels).
U: Part of Ultimate Spheres of Power and does not need to be bought separately from that book