Legal Society Prestige Classss

[Gedonnas]

Are hellknight and student of war legal for society ?

[KingOfAnything]

From what source? Check your Additional Resources.

From the Adventurer's Guide, for instance:

Adventurer's Guide wrote:

Prestige Classes: The prestige classing in this book are legal for play except the Aspis agent and Red Mantis assassin. A cyphermage replaces any Spell Focus feat for Scribe Scroll as a prerequisite, and may not choose the swift scrivener ability from the list of available cypher lore. A sanguine angel does not need to be female. The student of perfection is a valid prestige class for unchained monks, not the Pathfinder RPG Core Rulebook version of the monk; the prestige class uses the Pathfinder RPG Pathfinder Unchained versions of all cited monk abilities.

[Nefreet]

If it helps streamline your search, Archivesofnethys lists Society Legal material with a little Glyph of the Open Road.

Useful if you don't yet own the source and aren't sure what page it's on.

[Chess Pwn]

Just note for archives that if it's newly legalized material they might not have updated the books with the Glyph yet. So like the adventurer's guide is mostly legal, but archives may say all of it is not legal cause they haven't updated yet.