Woodwise was designed for a RuneQuest III campaign I ran many years ago. The sorcerer character wanted a familiar, and in RQ3, familiars can be designed in any of a million different ways. I made Woodwise to tie into an overarching plotline relating to the elves; ultimately it would be found out that there were elvish sorcerers who promoted the attack to seize the knowledge and lore of the Gray Seers, and then later fell into the study/worship of Chaos.
Woodwise's soul was the spirit of a daughter of the elf goddess Aldrya, twisted and warped through foul Chaos sorcery. I came up with a number of possible outcomes: Woodwise could become something of a rogue woodland element, supporting rebellious elves; the PCs coud end up on the run from the remaining elvish sorcerers, undying magical abominations; or, the PCs could try to restore the spirit of the daughter of Aldrya, truly an epic feat worthy of heroes.
I needed to write that better in the submission; ah well, I'll know better for next time.