The strange idiosyncrasies of how Thel interacts with Elly cards when jumping adds pointless complication and more pressure for players to use scripts when playing.
So what if Elly just drew a card for every 1 or 5 or whatever number stages skipped by Thel or Brev or something making it easy to to get full hand gem credit for Thell's & Brev's jumps.
No scripts or calculations or tailored favor numbers or briv boss skipping needed.