This article extensively explores Ethereum and its so-called "killers," including many public chains such as Cardano, Avalanche, and Polkadot. It delves into the advantages, challenges, and unique highlights of these public chains, analyzing their performance during both prosperous and downturn periods in the cryptocurrency market. Additionally, the article conducts a deep dive into factors that may influence the future development of these public chains and offers insights and predictions for the future of the crypto world.