This floor is mad tough -- I need advice on what teams I should be setting up and how to combat the ruin guards. The problem isn't the cryo/pyro hilichurls, it's the beefy ruin guards. They seem to have astronomical health values, far too disproportionate compared to their overworld counterparts. I can clear 8-1 and 8-3 with 3* each with no problem, but 8-2 is really starting to wear me out mentally.
I've tried using bow users to hit the weak spot, but even when they are stunned they take virtually no damage. Both of my abyss teams are setup so that they can apply Superconduct when necessary. My carries on both teams are both level 70 with high talent levels and level 70 weapons, with a full set of +16 artifact gear. I must be missing some secret trigger that should work.