Machinest?
Sorry to hear that your datacenter do not have a good caller calling which target to focus fire
It is beyond me if someone actually trying to focus Samurai in 72 men mode when there are other easier and higher priority target
For example, the warrior that Primal Render into enemy group (forgot they no longer has inner rage) should be focus fire before even bother with a Samurai
It is also pretty simple and safe to assume to every Samurai you saw potentially is LB ready after initial 2 mins.
It is also so veryeasy to bait Samurai's Chiten and focus fire him after Chiten duration is over
At 72 men environment, do you really think Samurai has higher threat without LB?