Ki Melee Attack: You perform an attack that encases a target in a tomb of jade on a failed Will save (DC = 10 + Wisdom modifier + your monk level + Stunning DC bonuses). Extraplanar creatures, Aberrations, and Undead must succeed at two consecutive Will saves to avoid this fate.
Target: Foe, Directional, Breakable
Save: Will: 10 + Wisdom Modifier + your Monk level + Stunning DC boosts
As this is a petrifying effect, it can affect Undead and Elementals, which are immune to a Monk's many stunning attacks. Also, once encased the affected enemy must roll two Will saves to escape - this effectively doubles the duration of the effect compared to a standard crowd control attack.