I'll share my pre battle macro. This is from memory so might be slightly off but it will cast stoneskin on everyone and then protect. Very useful after a wipe in Coil

/ac "Stoneskin" <1> <wait.3>
/ac "Stoneskin" <2> <wait.3>
/ac "Stoneskin" <3> <wait.3>
/ac "Stoneskin" <4> <wait.3>
/ac "Stoneskin" <5> <wait.3>
/ac "Stoneskin" <6> <wait.3>
/ac "Stoneskin" <7> <wait.3>
/ac "Stoneskin" <8> <wait.3>
/ac "Protect" <me>