I was thinking of granting Favored Enemies and Favored Environments as possible benefits to choose from for the various knowledge skills at every 10 ranks.
So, for example 10 ranks of:
Arcana would qualify you for Favored Enemy (Constructs, Dragons, or Magical Beasts)
Dungeoneering would qualify you for Favored Enemy (Oozes or Abberation) or Favored Terrain (Underground)
Geography would qualify you for any favored environment
etc...
In the case where multiple skills qualify you for the same benefit (Such as Knowledge-Dungeoneering and Knowledge - Geography), they do not stack and you should pick differing benefits.
At 20 ranks, and every 10 ranks thereafter, the character may choose to improve a favored enemy/environment appropriate to the skill that he already has or may choose a new favored enemy/environment.
(thus, a character with 10 ranks in Knowledge - Dugeoneering takes Favored Enemy (Abberations)+1 and also has 10 ranks in Knowledge - Geography so takes Favored Environment (Underground). If the same character later has 20 ranks in Knowledge - Dugeoneering, he can:
The bonuses stack with ranger favored environment/favored enemy bonuses and can be used to qualify for feats and prestige classes.
So, for example 10 ranks of:
Arcana would qualify you for Favored Enemy (Constructs, Dragons, or Magical Beasts)
Dungeoneering would qualify you for Favored Enemy (Oozes or Abberation) or Favored Terrain (Underground)
Geography would qualify you for any favored environment
etc...
In the case where multiple skills qualify you for the same benefit (Such as Knowledge-Dungeoneering and Knowledge - Geography), they do not stack and you should pick differing benefits.
At 20 ranks, and every 10 ranks thereafter, the character may choose to improve a favored enemy/environment appropriate to the skill that he already has or may choose a new favored enemy/environment.
(thus, a character with 10 ranks in Knowledge - Dugeoneering takes Favored Enemy (Abberations)+1 and also has 10 ranks in Knowledge - Geography so takes Favored Environment (Underground). If the same character later has 20 ranks in Knowledge - Dugeoneering, he can:
- Pick up Favored Enemy Oozes 1; or
- Improve Favored Enemy Abberations to 2; or
- Improve Favored Environment Underground to 2.
The bonuses stack with ranger favored environment/favored enemy bonuses and can be used to qualify for feats and prestige classes.