As a mystic mage myself I think stone form needs looking at. With the new reforged armour and the ever more powerful shame jewelry and artifacts it's now relatively easy to make a mystic mage with FC 4/6 without sacrificing other mods. Currently, with FC4/6, in stone form you can maintain the full casting speed of FC 2/6 for a mystic mage, the spell takes very little mana and is very quick to cast and like all buffs is not easy to purge. Lets consider a few things: When stone form was introduced it was not as easy to get FC 4/6. When stone form was introduced there was a 'forced walk' which for some reason has since been removed. I don't believe stone form was particularly overpowered when it was first released however now i think it is. I believe that stone form should limit the faster casting to 0 much like protection does to bring the spell back onto a level playing field. Discuss.