Talk:Halloween 2018 Event Revival (US)/@comment-40036569-20190917234901/@comment-4588822-20190918035118

When the event bonus is useful, then yes. In this case, the event bonus is damage. If you are concerned about being able to defeat the content of this event, then leveling the event servants might be worth your resource. If you are not concerned about the challenge, then it is a matter of your servant preferences.

In other events, the bonus may be currency drop rates. In my opinion, these are the events/servants that generally provide the most value to the majority of players.