Just started 10-man H:Thok progression last night (got him to 35% on second pull).
I run destro and averaged 400k+ dps (2 pulls, small sample size), but we don't have someone to provide mortal cleave to reduce Thok's heal.
I am not great at demo, but wondered if the boss heal reduction of Mortal Cleave was necessary/worth it?
Would you take Mannoroth's Fury and GrimSac for this fight for the bats or Archimonde's Darkness for the extra damage on the boss?
We are having no trouble getting the bats down before phase change btw.