Heroes:
Snow White Inquisitor can be substituted for Lucille Inquisitor
Teresa Archbishop can be substituted for Emilia Archbishop
Teresa Inquisitor can be substituted for Luthor Inquisitor
Cassandra Ninja
Snow White Archbishop
Gears:
All healers build DEF except Snow White build MAG
Cassandra Ninja equip Santa's Stash Set
PS: if you are looking for a team with no Cassandra, check out this link below.
https://youtu.be/PfKSQLkvcuA
Despite Arthur being nerfed and not being able to shield against the -50% damage, just follow the instructions in the video to the letter and it will work the same. I didn't rely on Arthur's shield against the -50% health since the beginning. That's what Teresa's heal is for.