Also, I have no idea where to alter anything related to Shackles Of Pain in the Divinity Engine. All I can see in the stats editor is that it's a status effect (that I couldn't find anywhere there) known as "SHACKLES_OF_PAIN" Data.txt files doesn't seem to have anything related to it either.
As fat as I know there is a Shackles of Pain damage modifier within data.txt
With this you should at least be able to change the amount of damage that is transfered.
