My boss starter rotation when I want to make sure to hold threat form dps.
FoF (Buff) + Rampart (Buff) [Before Pull] ->
Shield Lob -> Move into range of target ->
Fast Blade -> SoS -> Savage Blade -> Spirits -> RoH -> Blood Bath (Buff)
This runs through all of your OGC skills and your main threat building 1 -> 2 -> 3 combo.
Mobs of 3 or more where dps will be doing aoe damage
Shield Lob -> Run through the group to face them away -> Flash while running through the group ->
SoS -> Flash -> FB -> Flash -> Riot Blade -> Flash ->
Flash till less than half mp then do some FB -> RB till build mp for next fight, you might need to flash one or 2 more times