The cards that received the attack were the [Floral Jade Deer], [Three Flag-bearers of the Martial Arts Hall],[Sword Dancing Lady], and [Kung Fu Sheep Rabbit].
[Floral Jade Deer] with [Petrification]+[Balance - Intermediate Power★], receives only 20 points of the original 50 points of damage.
[Three Flag-bearers of the Martial Arts Hall]+[Sword Dancing Lady] perform [Defense], receiving[Full Penetration]damage of 25+25=50.
[Kung Fu Sheep Rabbit] needs DPS, receiving[Full Penetration]damage of 50.
Note that her [Light Body Technique] reduces direct attacks but not [Full Penetration].
Considering the healing from his own side, it's only [Hundred Demons Night Walk]10 points,[Determination - Sustainable Defense★★★(Enhanced)]10 points, and [Floral Jade Deer] 30 points.
That is to say that in one round, the Boss will reduce Ree Shil's card deck's health by 70 points.
As for the damage Ree Shil's card deck can do, it's also foreseeable.