User blog comment:Drakan95/Queen Elsa vs The Phantom of the Opera. Epic Rap Battles: Cartoons vs History/@comment-5264252-20150823173207

The Crystal Gems (Steven Universe) vs The Doctor (Doctor Who)

Aliens of a distant race capable regeneration and seek to protect Earth and its people, while also having being outcasted from their kind and having taken part in a massive, historical war involving their home planets.