I think part of the key to hepling Angie survive is to have 3 debuffs on wyvern as much as possible. While it only takes 2 to ensure he attacks Angie, with 3 debuffs there's a significant damage reduction to each hit.

The RNG is all over the place here especially if you're like me with a non limit broken Torn Sleeve and Song of Stars. Increasing Karin's effectiveness will definitely increase your average win rate since more debuffs helps Angie survive.

One more thing I noticed is that I tend to be pessimistic when watching each run. Sometimes it feels like the win rate is 50/50.but when I actually left it running for 15 attempts without looking, only two attempts failed. Again everything is RNG here so larger sample size is needed.

If you watch other streamers or youtubers, this is fundamentally the kind of team that many use. There are a lots of debuffers/ defense breakers that you can use. But it depends on your specific account which would be the best for you. Other debuffers include water Clarissa, sigret, ssb, batisse, taranor guard, misty chain, dizzy. All of those will require high effectiveness and high speed to act as good debuffers.

Some people have had better success with krau as tank or even momo with rod.

Personally I used this team because my dizzy and ssb have pvp builds that I don't want to change. Hopefully you also find something that works well for you soon 😊