From publisher blurb:
Diamond Polished Subsystems: Aristeia and Accrual is a supplement for Pathfinder 1st Edition that covers more persistent costs and reworks Drop Dead Studio's Aristeia subsystem.
In time, most every wound in Pathfinder can be healed. Conditions can be alleviated, curses removed, spell points can be restored, and hit points can be cured. Sometimes, a character may wish to tax themselves in ways that truly distort their prospects going forward, spending resources that can never be truly recovered for grand actions that represent the total investment of the character in a dramatic moment. The Accrual system provides the resources for GMs to allow this sort of cost in their games.
This supplement includes the following:
The Accrual Subsystem
The Reworked Aristeia Subsystem
11 Reworked Aristeia Feats
1 New Mythic Power
2 Optional Rules for customizing Aristeia.