Tallying up the slice to the knee James is going to have to heal, (1lb) the cut on the chest, (1lb) the destroyed eye (1lb) and the portion of tentacle that got hacked (3lbs) 

As well as the creation of the bone spikes (6lbs each)

That is about eighteen pounds out of the total 180 James has stored. Just so you know roughly how I'm tracking this, and that I am tracking it! (Hint: if James hadn't retracted the tentacle to try and save some material that would have been more of an 8lbs loss) Also since Shiara was wondering, though she wouldn't know that in-character lol