I know this topic has probably been EXHAUSTED, but I’m curious what to do to get past levels 2 & 3 of the Bird?

These are the characters that I *don’t* have, so I’m willing to try most anything at this point.

Haven’t found any guides or good videos (since the greats all left the game before mid-summer), so any of those would be appreciated, too!

Currently getting past floor 1 85% of the time with H Gowther, Sariel, R Liz, Margaret.