If you clear the board, it draws cards, gives them cards at reduced costs, they only go face, the only removal they have discovers more face cards. They can freeze the board to go face.
Hero power and buff it’s attack by 8? Face
FWF? Face
Might of menethil? Face
They have 5 corpses? Shot at your face
They played a minion? Draws or generates a spell that goes face.
Healing for over 40 hp, clearing the board, playing minions and still losing to face damage that you cannot stop since it’s all from hand is 10/10