The VOIDRUNNER'S CODEX is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
They stack across. The system is very similar to the bonus spell system in the player's handbook. If the psion has a high enough stat, he gains enough bonus power points to manifest an extra power of each level he can manifest.