Complex sentence: An image of the Wonder Woman costume was revealed at the 2014 San Diego Comic-Con, in which the costume discards the red, blue, and gold colors that make up the costume of most versions of the character.
Split into simpler sentences: An image of the Wonder Woman costume was revealed at the 2014 San Diego Comic-Con. The costume discards the red, blue, and gold colors that make up the costume of most versions of the character.