Nice. I am a bit concerned that the Wis penalties make it annoying for a cleric; there are ways around that (i.e. Favored Soul or Archivist into Contemplative to get the Fury domain), but that's not an ideal path.

Also, the idea of an Archivist or Cloistered Cleric of the Fury Entity really amuses me.
DEAR WORLD,
HATE HATE HATE HATE HATE HATE HATE HATE HATE.
LOVE, THE FURY ENTITY.