Altered Time - your #1 World of Warcraft Mage resource!

Hello! I'm new here, so please forgive me if I do something wrong. On topic, I am looking for some advice regarding Arcane tactics on Hc Gul'dan. I will link armory and logs on bottom. We have killed Gul'dan on Hc with my guild last week, and I ended up at about 50% on the parses, which is rather lo...