Disappointment.

I have long used Dragon Rider PQ as a source for Power Elixirs. With ten boxes, I got an average of ~60 Power Elixirs a day (which isn't as much as Toad, but still a substantial amount).

Leviathan drops tradeable Power Elixirs (albeit at a horrible rate, like 1 for every 5-10 kills), and normal Hilla drops ~7 of them per run.

idk what your potion use is, but I guzzle 60-80 per hour training at HoH on Hero. Can use gingers, of course, and the meso drops cover them easily, but free powers are nicer (plus they stack higher).