From the beginning, Ethan was planning to use the General Revival Life Card on Zepharis because Night Demons have some good skills that can be used for both protection and assassination.
Ethan already has Seraphis, but he believed that having another Night Demon as a loyal subordinate would be quite useful.
When Ethan learned that Zepharis was Seraphis' little brother, he needed no other reason to revive Zepharis, reuniting the Brother and Sister duo as they can both help out with his things.
Also, the reason why he picked the General Revival Life Card earlier was to have more subordinates, and a Night Demon would become a good subordinate for him.
Therefore, Ethan didn't hesitate and used the General Revival Life Card by saying that he had three pieces of good news for Zepharis.
However, he didn't explain them and directly revived Zepharis, which was one piece of good news.
'Ding,
The host has used a General Revival Life and successfully revived a Night Demon: Zepharis.
