Any improvment to the sch would make him way too strong when it is already at the top
And dead ni on changing stoneskin2 this skill is secondary
Only that to gain time before pull (because eit has twice the time of the single one but cast at least 4 to 8 stoneskin)
And yes you have to spend 5sec casting because it's better than 10 or 20...)
You won't die for 5sec cast especially outside battle
