Priority - Boss greater than 20% health

1) Heroic Strike only as a rage dump when rage above 50
2) Colossus Smash
3) Bloodthirst
4) Berserker Rage if not already enraged
5) Raging Blow (when enraged)
6) Slam (On Bloodsurge Proc)

Boss less than 20% health

1) Colossus Smash
2) Execute if Executioner stack less than 5
3) Bloodthirst
4) Raging Blow (when enraged)
5) Slam (On Bloodsurge Proc)

Stat Importance

Hit (to 8%) > Strength > Hit = Crit > Mastery > Haste

Reforging

1) Reforge your weakest stats until you've reached 8% chance to hit
2) Reforge Mastery and Haste to either Crit or Hit