A member of an obscure squad of Decepticon air warriors known only as "The Rainmaker". Acid Storm is known as an individual only to his teammates and a few others. He is highly intelligent, eager and dedicated utterly to Decepticon cause unlike Starscream, Sky Warp or Thundercaracker. He has a talent for marshalling vast amounts of data, as well as a way with words that would make him a powerful speaker. However, he prefers to remain anonymous, as part of his team. His hypersonic-3 blasters can seed natural clouds with a highly destructive form of acid rain.