Focalization should increase resistance to piercing attacks, at least in the Feast (and other 4 man PVP content). There's no other PVP ability that becomes completely useless depending on the OTHER team's party composition. Combined with the fact that MCH is still OP as hell, this should be a no brainer. As a healer, I need this extra button to press if a WAR, DRG, and MCH are all dogpiling on my melee who took the atk potion.
