>>44104731>>closeYeah, I can tell it isn't a perfect match, but those cannons sure as hell aren't metal-looking gray in Blastoise's official art.
>you can't just discard every single time they show their glow because you want to pretend he has bone cannonsCome on man, the anime is no bible for how pokemon are exactly supposed to look. Look at Incineroar here, which is supposed to have its lower jaw be red, not black. Or see any of those ridiculous looking images of Drednaw in the anime. They play with proportions and details all the time.
And how about the best evidence that the cannons aren't metal? It wasn't made a steel type in gen 2. Even when it received a mega in gen 6, it still stayed pure water. This should be the most persuasive evidence of all.