[5e] Level 1 character vs. a big bruiser

[JackPhoenix]

I guess nothing is stopping the third Ceremony from being cast anyways since it has such an immense duration.

Well, except the same thing that stops the 2nd Ceremony: "The effects of different spells add together while the durations of those spells overlap. The effects of the same spell cast multiple times don’t combine, however. Instead, the most potent effect—such as the highest bonus—from those castings applies while their durations overlap."