[Anders]

I dislike using Cosmic Modular Abilities for everything, and I would prefer to make a custom-made Modular Ability for spirit magic. Something like

Spirit Magic (5+3) - your modular ability depends on calling on the spirits and binding them to your service. You need to perform a ritual to rearrange your abilities - this takes one minute per point rearranged.

Slap the psionic modifier on that and bam!