Elaine, the Fox's Sin of Greed

What if Elaine were to drink the Fountain's waters and became immortal instead of Ban during a demon attack? After Ban's death, Elaine took the blame of the burning of the Fairy King's Forest and was sentenced to death for the sin of greed. Eventually she ended becoming a member of the Seven Deadly Sins as the Fox's Sin of Greed. I don't own Nanatsu no Taizai or its characters.