[Meta thread] Iron's PokeRole Adventure: The Skull Ruins

[Dragonstrike]

Out of curiosity, I decided to just list all the pokemon that could potentially learn these weaker Hms somehow, just based on the data in the games.

The aforementioned list

Cut: Kartana's the only pokemon that learns Cut through level up, making it its signature move in gen 7.  Lol.

Fly: Salamence, Rayquaza, and...Drampa(?!) all learn it through level.  At rather high levels, to boot. There's also technically Balloon Pikachu, I guess...

Surf: HM/TM only in ALL of its appearances.  Surf's quite special, it seems. Pikachu on Surfboards are fun too on the off chance they show up.

Strength: Machamp's signature move in Gen 7, learned upon evolving!  (and thus, all Machamp are pokeride candidates in Alola because they're the only ones with access to the move there)

Flash: Volbeat, Morelull, and Shiinotic get it at very low levels!  Though considering Illuminate or a well trained light emitting pokemon can probably do what a weakened Flash could anyways...

Whirlpool: Lots of pokemon learn this one since it didn't have a tutor for it in gen 4, unlike Dive.  Shellder, Mudkip, Wailmer line, Clamperl line, Piplup line, Buizel line, Finneon line, Manaphy and Phione, Alomomola, Dhelmise (the only non-water type not named Smeargle that can use it without the HM), and Tapu Fini get it through level.  Lapras, Omanyte, Chinchou, Barboach, Basculin, Tirtouga, and Wishiwashi (USM only) can potentially get it as an egg move.

Waterfall: Goldeen and Seakings' signature move since Gen 1!

Rock Smash: Sawk, Pikipek line, Crabrawler line, Passimian, and Golisopod.  Level up stuff.

Dive: Level up for the Seel line, Wailmer line, Huntail and Gorebyss, Relicanth, Phione and Manaphy, and Wishiwashi.  (Carvanha likely has it listed as ? thanks to that gen 4 tutor.  Sharpedo are also known for being some of the fastest Surfers around, courtesy of gens 6 and 7, which is another interesting thing to note)

Defog: Ducklett line, Rufflet line, Vullaby line, Tapu Fini, and Kartana get it through level.  Can also be bred onto...Pidgey, Zubat, Scyther, Hoothoot, Seedot, Tailow, Drifloon, Chatot, Archen, Rowlet, and Fomantis.

Rock Climb: Venipede line, Scraggy line, Ferrothorn, Druddigon, Rockruff line.  Breedable for Sandshrew, Geodude (Kantonian and Alolan), Onix, Rhyhorn, Gligar, Zigzagoon, Bidoof, Gible, Drilbur, Sandile, Joltik, Ferroseed (doesn't get it through level, unlike its evo), Bouffalont, and Durant.