Mt. Blueberry (Patreon)

How unfortunate it was for Mt. Lady to face one of the most worlds unique, yet dangerous villian who possesses the quirk that allows them to break down foods into liquid and expand the quantity of said liquid into enemies, expanding their body until they are a large balloon with sunken limbs, or till they... pop!

The villian was able to aim a tiny blueberry into Mt. lady's large mouth and as much as Mt. Lady tried to shrink herself down to average human size, this villian was able to prevent this by accelerating the growth of the blueberry's juice inside Mt. Lady, causing her to quickly balloon out and grow larger and larger by the second! Soon she towered over the large city, blue and completely immobile.