Assuming the assassin makes it to Earth 616, here is our list of five Marvel heroes Deathstroke could and would defeat. Richard Keller updated this page on October 7th, 2020: In most confrontations, Deathstroke is difficult to defeat. He has been known to fight multiple opponents at once, using various weapons including his sword, cowl, and claws. Deathstroke's strength, speed, and stamina are all enhanced by the same implanted nanotech that allows him to heal rapidly. He also appears to have some form of mental discipline since he can maintain his focus even when faced with many enemies at once. Finally, he appears to have some kind of connection to other assassins since he can learn their techniques quickly. Deathstroke was originally an Atlantean mercenary who became a crime lord in Star City. He eventually left town to start his own gang which grew into a worldwide organization called The Family. Over the years, he has taken on many different identities including one named "Slade Wilson." He currently uses the name "Deathstroke" and calls himself "the greatest killer in history." He has been defeated by several characters over the years including Batman, Spider-Man, Captain America, and Iron Man. He has also been killed multiple times but always wakes up later with no memory of his past lives.