I'm seeing a strange icon appear over enemies on a random (fairly rare) basis. The icon I'm talking about is shown on the left side of the screenshot below:
I'm not seeing any associated status effect icons above the enemy's health bar, and the effect only seems to appear on a semi-rare basis. It also seems to be tied to my weapon, Tormentor
, though none of the listed effects seem to match this icon.
Any ideas what this is?