Unable to determine needed defenses for Abyss content

I have been greatly enjoying PoE2 and have about 1000 hours plays since its release.

I primarily play SSF as a Warrior in all seasons, with a relatively slow pace and a focus on defenses and not dying. I challenge myself every season to be able to beat the campaign without dying. My latest character is a Titan, using Shield Wall / Charge and Fortifying Cry and I was able to reach level 75 before dying in Abyss this morning.

Throughout all of the Abyss content I have been struggling with some kind of effect from monsters that places a damaging ground in the environment. I can't tell where the ground is, or what type of damage its doing in order to better mitigate it. It effectively deletes my warriors 2.1k health before I have time to react, with life flasks not appearing to help.

This makes me want to avoid the content, because I feel rather helpless and have to focus more on my health globe to see if I'm in danger rather than the actual combat when in Abyss.

Is there some defensive layer I'm missing? I know armor only applies to hits, and DoTs like Corrupted Blood and Bleeding are also a challenge but I have options with those.

P.S - I have been loving the 3.0 changes overall. Vanguard support, and bypassing warcry cooldowns with endurance charges are awesome additions. And the crafting additions have been extremely enjoyable.

It's a physical DOT that also prevents you from recovering. Not much of anything you can do to mitigate it aside from having more Life/ES and getting out of it ASAP.

If you play with strenght align armor, i think the "% additional physical damage reduction" you can get on armor apply to physical DoT.