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The most challenging villain for avengers who was impossible to be defeated.
He is smart, brutal and very difficult to defeat.
Joker is the toughest and most powerful villain in the Batman universe.
He is a smart, brutal and almost invincible supervillain.
Though being a villain, he lives in the hearts of millions. He had some really impressive powers.
It was really tough for King Kong to defeat Godzilla.
People were scared to take his name. He was very hard to defeat.
Gogo was very difficult to defeat, she was very close to overpowering Bride.