Scions of the Storm
Seed of Knowledge
This device appears to be a large, deep brown acorn that shimmers with motes of green light. When held, the seed seems to pulse against the holder’s hand, as though the power within it was on the verge of bursting forth.
When activated, a seed of knowledge permanently bestows a single class-related ability upon the user. For a magus, the seed adds a single magus arcana to their repetoir. For a wizard, it would hold an arcane discovery. For a ranger, it would add an additional favored enemy. The exact permutations of features available from a seed of knowledge are up to the DM.