The problem with DBZ, and a lot of shonen at a certain point, is that it became all about the hype moments. What used to be a huge, massive hype moment in DB, turned into the norm in DBZ. It was no longer about martial arts, because everyone can do high speed martial arts. It became about power levels, and in that was the problem. Giant energy attacks were a direct show of how high a power level was, and if your power level wasn't good enough you'd transform in order to raise it.
Granted, the transformations weren't that big of a deal early on. Up until Frieza, all that was there was Kaioken, and even that could be argued to just be a temporary boost and nothing more. You also had the Great Ape, but that showed up once (Vegeta) and it wasn't a surprise since it got used in DB. Then Frieza shows up, transforms three times, and whoops ass until Goku does what? He transforms in order to raise his power level significantly. Then the Cell saga had Saiyan transformations and Cell transformations EVERYWHERE. The Buu saga was even more ridiculous, since it increased the amount of Saiyan transformations, included the Majin stuff, Fusions, and on top of that, Buu transformed a shit load.
But like I said, this is a shonen problem in general. Transformations are supposed to be a big deal because there has to be a downside. The problem is that with stuff like DBZ, where they train constantly, the transformation loses its downside. The only way to mitigate this is by having the transformation become the norm, so then the transformation without a downside becomes a necessity.
Bleach and
OP suffer from the same damn thing. The thing is, OP gets away with it a bit more because the abilities within the world are so varied, that blatant power levels isn't a thing. It isn't as transparent, but even then OP became about constant transformations and big attacks and "trap card"-esque reveals. Oda can't write/draw an interesting fight to save his life, I swear. Bleach is sort of an in-between. The power level stuff is blatant, but the abilities are so varied that at the very least, the fights are still somewhat interesting.
YYH and HxH don't really suffer from this too much. Since, while the power levels increase, neither series becomes all about strictly the hype moments. Big energy blasts and transformations don't dominate the landscape (though the trap cards are insanely present. Especially in HxH).
I think Dragonball Yamcha would at least try a Wolf Fang Fist.
Nope he'd be too scared to fight himself. And himself from the future. And himself from the future who isn't with Bulma.
This is what happens when the author of something is a complete fanboy for his main character. He can't use some logic and let a side character have a moment to shine. It's like with Kakyoin in Stardust Crusaders or Lisa Lisa in Battle Tendency. Granted based on what I've read Araki gets a lot better with that in later chapters though.
The problem is that Toriyama always uses "the fans wanted it" as a cop-out, which basically means "I'm not responsible for my storytelling, because I just do the things that the fans want."
Yamcha vs. Foamy Mouth Guy
Who we got???
Foamy Mouth Guy, because he isn't Yamcha
Yamcha vs God.
It's interesting because if we assume God is both benevolent and omniscient, would he give Yamcha the W knowing he needs it?
No, because even the universe and all celestial beings do not respect Yamcha