I finally beat it with a defensive team after many tries. I used 2 Castoria + BB (SR) in front. Mash+Merlin+Archetype in back. Full damage cut CEs.
Not sure if you've seen it yet but the new collection for Servant Skill Effects is up! You can find an entry example here:
NP Gauge Up

Even if they were worried about making an AoE Archeria in terms of self-looping, they didn't need to completely destroy his card NP gain. They just needed to put a negative refund modifier on his NP specifically, like they did with Caster Gil who has normal and proper card NP gain but terrible NP refund even with his massive amount of hits.

These should probably go on the list for Best Farming Locations. Especially for Pieces, as getting a minimum of 2 means it’s as good as, if not better AP to drop rate. (As it should be, given the Storm Pods limiting factor).
Of course, it should be noted that the Daily Quests have a wider range of drops, so they’re only preferred if you need a hyper focus on that specific drop…
We have something similar to that using the Tags collection for Servants which lists Servants that have a specific effect in their kit. However I do think you might be asking specifically for a way to also show the values like the CE effects collection, will see if I can find a way to do that!

Part 15-2, walkthrough says Berserker gives 1-hit evade while it gives 1 turn of evade
Part 15-2, walkthrough says Berserker gives 1-hit evade while it gives 1 turn of evade
15-2 walkthrough says "When the second wave starts, the Archer gains MAX NP Gauge and the Berserker applies 1-hit Evade to all of its allies."
It gives 1 turn of evade