So, I'm before the eternity studio in my current playthrough using only water manamon, I only used Kaboerain/Friggle/Turoison until Mamia, now it's essentially a huge grindfest for the rest xd.
Still disappointed by Turois'on's moveset, now I don't completely dislike it as it's really good at walling things sometimes, and Toxic Storm is a good way to get rid of insect, shadow and especially plant types, with a long wand equiped, it's surprisingly decent. But then it's best water move is bubble burst, it gets mud ball in the 40s and then storm rush. Perhaps it gets something good afterwards but I doubt it.
Kaboerain@water gun I gave up, I thought Tidal gun was 80 power and had a greater chance to raise magic attack, it sounded to good to be true and sure enough, it wasn't that good, so back to Angillish we go.
Keeping Friggle in it's mid-form is a bit of a handiccap for now, but it has cloud cover and as it's stats were already decent, I didn't want to do all the breeding so that it has both the ability and the stats I want, so I really want that final thunder instead of lightning bolt, even if only to finish the bosses.
Engorge I'm really interested in trying, I was going to ask about Submaino having skilled jaw as I was sure I read it somewhere, but it's not the case. Still I'm probably going to try that ancient jawbone on him. I wonder what's more powerful between Aquatic Blitz and Hydro fang boosted by skilled jaw, I think it is probably the former.
For the sixth one, I'm not sure. Perhahps I could only use 5, or try Fingon as I still didn't try it, but sometimes I wonder if it really knows what it wants to be, a physical one-trick-pony perhaps.