So sun and moon added dex entries specifically for mega pokemon.

Aren't the ones without description just because those stones aren't in the game yet?

Unrelated but I think Gardevoir's Mega Stone is very pretty

>>32915539
That was true at the start but since then a lot of them have become available with mystery gift codes.

Missed Sableye on my list too

OP with an attempt for Camerupt
>The energy of mega evolution drastically increased its lava production. It blasts molten lava indiscriminately.

I'm not great with words though

>"The second set of jaws that sprouts upon Mawile's mega evolution brings with it an insatiable hunger. Mawile will devour anything in its sight to appease both sets of extra jaws-if unsatisfied, they will attempt to eat one another."

>>32915716
Mawile's hair isn't even a mouth. They're just clamp-horns. The dex even says so.

>"To sustain the thriving plantations on its back, Mega Venusaur must push it's body to its limits. The toxic pheromones it's flower emits burns both Venusaur and any surrounding Pokemon."

>"By unleashing its inner strength, Charizard loses complete control of its pyrokinetic abilities. It trashes about and spews flames uncontrollably wherever it goes."
For X.

>Its need to hunt is all that survives the mega evolution. It blasts its prey with llightning then charges at them in the blink of an eye.

>With Audino's healing powers greatly increased by its Mega Evolution, it enters a nurse-like mental state, ignoring everything, even its own injuries, to help anyone that is hurt.

>As its mind enters a state of total nirvana and loses touch with the outside world, Mega Medicham fights purely on physical instincts, forgoing any sense of restraint.

How would you write one for Mewtwo when it's already a berserk creature that thinks of nothing but destroying its enemies in its base form?

>>32915929
>There are urban legends of a shady research lab exposing a mystery pokemon to mega radiation. By the next day the lab was gone without a trace/rubble.
depending on whether they made Mewtwo Y or X

For Mega Houndoom

>Through Mega Evolution, Houndoom's base body temperature increases significantly, allowing it to breathe hotter and more intensely burning flames. However, this raise in body temperature is hard for Houndoom to regulate and is extremely taxing to its body in warmer weather.