thats why you kill them in packs of 3.... i guess for instances like ak wp it might be viable to use but in a raid 1 hit will take stone skin off you would be constantly trying to cast it on the tank. most the time stoneskin is better for the dps in the party as a premtive you cast it at the start before you go in to battle. first aoe takes it off then you reapply it before the next big aoe happens.
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