Complex sentence: Rodan's debut appearance was the first and only time the character was given a chestnut color, and its face was given a menacing face with a jagged fanged beak, which would disappear in later incarnations as the character became more heroic.
Split into simpler sentences: Rodan's debut appearance was the first and only time the character was given a chestnut color. It originally had a menacing face with a jagged fanged beak, which would disappear in later incarnations as the character became more heroic.