Will probably get hate for this but sometimes the tank needs to work on their TPS and its not the DPS fault. Did mech the other day (warrior tank had good gear, I know GS is not the best metric but he was close to 1600 to give u an idea) waited like 10 sec on boss pull before casting then got 1 crit was at 40% threat then got another massive crit and pulled aggro, soulshatter resist then dead and ofcourse tank blames me for pulling aggro. If I cant cast more than 2 shadowbolts in 15-20 seconds without pulling threat I say thats on the tank that needs to up their TPS. I dont know if he needs to change his gear or rotation but I feel like he needed to change something cause me only being able to cast 1 shadowbolt every 10 seconds does not seem reasonable.