So, after thinking about this a bit ...

I feel the best I can do is to have Lydia run a Stoneskin set, and then build her as a nuker. With proper gear, she should be able to land 25K+ crits on her A3, so, on two hits, about 50K damage. This'll still work fine on the first team, since she'll have enough speed and acc to do what she needs to do, and on the second team, it gives me insurance - if Cardinal resists the buff strip, then I win because of her, and if Lydia resists the buff strip, then I use her to kill their nuker, and then rely on her passive to revive the rest of the team.

It's definitely an odd plan but ... I think it could work. It'll mean that I can run the team against their primary speed nuke team, and have around a 75% chance of winning (would have to fail both of the 50% checks against Stoneskin to lose).

Thoughts?

Never considered that build, would certainly catch me by surprise lol.  I would build for hydra myself if I was regearing. So not a nuker for sure but more of hybrid build with speed acc res and tanky enough.

 flexible to use in both go 1st and 2nd arena comps