STONE STANCE (Level 51): When using this discipline, the monk will take roughly 1/3rd damage from most physical attacks. This discipline lasts for 12 seconds, and has a base reuse time of 12 minutes. The reuse time for this discipline will decrease as the monk gains additional levels.
Thats taken from the EQ manual Supplement found here:
https://www.project1999.org/forums/s...ad.php?t=26867
Something does seem a little off with it. From Rais's log post patch vs the phantom with Stonestance on looks like he should be being hit for 10-20 damage or so.