Mega Chesnaught, surprisingly, has a small anti-feat, in that Mega Chesnaught apparently can't easily wield its weapon with only one hand due to the weapon's weight. However, gripping it with both hands makes it possible for Mega Chesnaught to "use its weapon with exact precision to beat down foes", apparently.
Also, Mega Chesnaught is the same height & weight as regular Chesnaught, so presumably, the weapon, which is a form of its armor anyway, seems to change in mass.
"A HARDENED OUTER SHELL GREATLY BOLSTERS ITS DEFENSES
Energy from Mega Evolution has been channeled into its outer shell and throughout its body, resulting in a dramatic increase in its defensive capabilities. The fur on its body has also grown and can act as an impact-absorbing cloak. Confident that it can withstand any sort of attack, it possesses a steadfast spirit and always remains levelheaded."
Shoutouts to it possessing a "steadfast spirit" & always remaining "levelheaded".
"THE MEGA EVOLUTION OF THE FOX POKÉMON
It uses psychic powers to confuse opponents, making for a tricky fighting style that allows it to unerringly deal damage.
IT MESMERIZES OPPONENTS USING ITS PSYCHIC POWERS
Its psychic abilities have been enhanced. Mega Delphox controls two branches that float by its side. It moves these branches as if they were brought to life by its magic, leaving onlooking opponents bewildered. It also floats atop a large lit branch, dazzling its foes even further. In contrast to its disoriented opponents, Mega Delphox stays calm and collected as it deals damage by landing precise attacks.
AFTER CONFUSING OPPONENTS, IT INCINERATES THEM WITH SCORCHING FLAMES
Mega Delphox attacks its foes by skillfully coordinating its moves in tandem with the two lit branches floating nearby. And there’s more! These seemingly autonomous flames don’t just confuse the opponent—they can also be combined with the flames Mega Delphox spits from its mouth, forming a huge fireball that engulfs and burns its targets."
Pretty neat. Surely Mega Delphox won't have just Levitate if it gets transferred over, right?
Neat that it attacks from multiple points with "autonomous flames", seemingly in tandem or combined, & I wonder if it'll be plausible that Mega Delphox scales above base Delphox's temperature feat.
Apparently it also lands precise attacks.
I also like that it stays calm & collected.
"It uses its incredible reflexes to launch attacks at opponents while they are distracted by the sight of it clinging to a gigantic water shuriken."
So it counts on its foes making mistakes??
"THIS NINJA POKÉMON FORGOES STEALTH TO MAKE FULL USE OF ITS SHARPENED REFLEXES
Unleashing the energy of Mega Evolution has dramatically improved Mega Greninja’s reflexes. It intentionally reveals itself to push opponents into attacking. Then, it detects their incoming attacks and moves so swiftly that it’s able to strike first. Normally, Greninja would appear in a flash and disappear like a ninja. Now that it has Mega Evolved, it no longer bothers to hide itself, demonstrating to opponents its confidence that it will win."
Forgoes stealth, goads foes into attacking it so it can... detect their incoming attacks & move so swiftly that it's able to strike first. Either this is some absurd reaction stuff due to its statedly enhanced reactions, or precognition. &/or some kind of absurd speed.
Still, Mega Greninja, are you stupid? It seems impractically confident.
Somehow, Greninja is the only one of the trio that ended up with intelligence/behavioural issues. Mega Chesnaught & Delphox stay calm, but Greninja is overconfident & arguably reckless, since its goading foes into attacking to evade them, lol. I guess it's sure it'll be able to find openings that way?
Forgot to mention: Interestingly, all 3 of them are the same height & weight as their regular form.