I cleared the entirety of E19 with only Water types. Here is my experience-based tierlist (explanations w/ some spoilers in comments!). : r/ PokemonReborn
Agate Circus | Pokemon Reborn Wikia | Fandom
Abstract Wall Art | Paintings, Drawings & Photograph Art Prints - Page 69
Pokémon Reborn Extra: Dat Puzzles (2/2) + Meeting Samson - YouTube
Item Guide - Ep18: Void-kissed (Old Version) - Page 2 - On the Hunt - Reborn Evolved