Your ele shammy is doing terrible. Have him put on his Archimonde trinket instead of pof. Open with a chainlightning on the pull to hit 3 targets and throw down an earthquake on the two targets. From there his top priority should be getting flame shock out with 2xEF+UF buffs and maintaining it. I usually flameshock with uf on Gurtogg right away, get into ascendance, earthshock when I get enough fulmination stacks and then when uf comes off cd I get 2xef stacks and flameshock dia. From there he should get enough procs to do the same to blademaster. Then you just keep flameshock up. Whenever he is attacking gurtogg he should be using chainlightning instead of lightning bolt.

Really, your ele shammy should be near the top of the meters, not dead last.