[@Punished Homura]
Asura's most low-powered form was able to rip his way through a monster the size of a city with ease, and managed to destroy a monstrous being more-less the size of the moon. That's the weakest you ever see him in the game. If his Vajira form also appears, he's potentially able to destroy planet-sized objects. These forms are weak only due to the comparison to his later forms.

However, I understand your point.