Sceptile Leaf Blade
Nighttime Guardian
I want diving to come back. It was kind of a missed opportunity to not include diving in Alola. Truth be told I'd even like to go to the Deep Sea sometime and get some freaky looking fish pokemon. With water routes I prefer to first have a greater variety of Pokemon to be encountered there, especially non-water types.
I don't own USUM, so I haven't played Mantine Surf. Is it a voluntary thing you can do whenever you like or is it like required to move between islands before you get access to the Charizard pokeride? Because stuff like that and soaring should, imho, only be voluntary and never completely replace the faster alternative.
The first time you have to use it, after that you can also use the boat like in SuMo. And Charizard ride also works in USUM the same as in SuMo. So essentially it's voluntary, I still do it regularly because I like it.