Complex sentence: But using the energy of the Earth, Mother Melzard evolved into a larger monster and gained a new form,, going on a city smashing spree while overpowering Kuwaga Titan until he chopped her tail off.
Split into simpler sentences: But using the energy of the Earth, Mother Melzard evolved into a larger monster and gained a new form,. She then went on a city-smashing spree while overpowering Kuwaga Titan until he chopped her tail off.