I had the talent ferocity which reduces energy cost of certain abilities by 5 but this was not working for a while. The cost for claw stayed at 45 even though it should be 40.
I contacted a GM who managed to reset my talents which fixed this issue.
http://puu.sh/qLH2O/038ad9284a.jpg http://puu.sh/qLH4t/2fb351a0e5.jpg