So, it looks as if definitely these trials are way easier than they look… I was worried about this one as well, since I had no healer again, but found the challenging stage regular mobs really weak… Only needed 5 small life pots to get to the final wave with a less than ideal team.
This is the team I used (started leveling Scarlett just for this trial and as you can see, still not at all maxed).
Bosses’ health was even lower than the last trial, and getting to the last wave, easier than expected with some low defense heroes. The regular mobs don’t hit at all.
I tried not to use damaging battle items and succeeded.