A monster appear

A huge scaly monster with long claws appear a few streets over causing a lot of property damage. The monster had a snake like head as it started to bite in people directions.

You knew you could stop this at a moment notice but wanted to see if the famous Supergirl would show up. You ran to the street with the monster on it waiting on her.

You heard a loud motion above you making you look up to see a blur. It had to be Supergirl you thought.