Quoted By:
>kills potential for regular evolutions
>limited usage because 1 per battle rule
>because of said rule if a mega is outclassed it's even more worthless because it's competing for 1/1 slot instead of 1/6 slots
>boring designs that are derivative of the pokemon's base design because it still has to be the same pokemon
>shitty balance; Garchomp gets a mega that's practically worse than its base form yet Salamence gets a mega that's better than most ubers
that's why.