This can't be it, there's gotta be another way, there's no way this isn't thought through thoroughly
Edit: I made it though a miracle, but in all seriousness, without sounding disrespectful or mean, this part in particular, must be changed in a patch or later versions because imagine a new player coming into and having no idea of Rejuvenation or Reborn in particular and is going to be stuck here aswell because of reasons like that.
Let Pokemon spawn so you have at least the chance to lvl up your team or other Pokemon that can deal with it
I only got lucky with flinching and paralyze activating 5x in a row in combination with solrocks heal blockade, if I wouldn't have had solrocks heal block I rly would've needed to restart.