Pretty certain this is hitting Magic Resist much harder than it should be, bringing the skill all the way to zero.
Protection Reduces Magic Resist to Zero
Re: Protection Reduces Magic Resist to Zero
It actually stops at some point (i.e. doesn't bring to 0, your cap just ain't high enough right now to have more than 0 once the debuff is applied), but ya, it is a big hit on magic resist.
Re: Protection Reduces Magic Resist to Zero
This will be reviewed and probably adjusted in the upcoming magic review.