Grrrrr. This site needs a table function!
Good will saves, bad fort and ref saves
1: Channel spirit, esoterica
3: Spirit Residue
5: Master Spirits
10: Strength of the Spirits
15: Spirit Form
20: Lord of Spirits
For ease of use i have not written the dead levels.
Channel Spirit(su): At first level, the Spiritualist gains the ability to channel otherworldly spirits. As a standard action he can channel any of his known spirits, summoning it in any adjacent square and letting it take a standard action before disappearing again. He can do this an unlimited number of times per day. The spiritualist can choose a new known spirit each level. The spirits may not have more HD that the spiritualist’s class level. A spirit may be any extraplanar outsider or elemental. Every fourth level, the spiritualist may reassign one of his known spirits.
Esoterica: The spiritualist knows how to affect the spirits he channel in strange ways. Each level, he may pick a new Esoterica ability. esoterica abilities are fueled by Esoterica Points. The spiritualist has a number of Esoterica points equal to his class level*half his int modifier.
Spirit Residue: At third level, the spiritualist is affected by the spirits energy he channels. Each time he channels a spirit, he gains temporary hit points equal to twice the HD of the channeled spirit
Master Spirits(su): At fifth level, the Spiritualist gains the ability to control free-willed spirits. This functions like the turn undead ability of a cleric four levels lower than the spiritualist, except it works only on outsiders, it turns those of an opposite alignment, and rebukes those of neutral or similar alignment. This can not be used to fuel feats or class features that uses turn undead.
Strength of the Spirits: at tenth level, the spiritualist may pick a single special ability, ability score, or natural attack of one of his spirits. He gains that feature, and if it is an ability score, he adds the bonus to his own(not the ability score modifier, but the racial bonus to the actual ability score). this may be reallocated once a week.
Spirit form(su): at level 15, the spirit master gain the ability to assume the form of his known spirits. this functions as a polymorph spell, and can be used once per encounter.
Lord of Spirits: At 20th level, the spirit master attains unequaled knowledge and mastery of spirits. His list of known spirits expand to include every extraplanar outsider or elemental whose HD are less than or equal to his class level.