Gelid Zealot too much damage, is it bugged?

There's only 1 monster that can kill me. It's a Gelid Zealot, even if it's a white mob. I have 6500HP and 1400HP regen. I basically don't die to anything. Except these zealots, even two or three of them can easily kill me within a second.

This must be bugged right? Just like the DOT in Sehkema did 10 times too much damage. That must be going on with these creeps right?

I think it is bugged, I had over the 75 cap of cold res with something like 8K for a shield, and it nuked me from orbit.