Specific attack methods: 1. The attacker deploys a dedicated contract in advance, controlled by an EOA account. 2. The contract can bypass and preview 100 generated NFTs at once, select the rarest one, and return the remaining 99. 3. The custom contract returns the purchased rarest NFT to the EOA account. 4. Sells it at a high price on the market to profit from the price difference. This causes the entire NFT collection to be washed into the rarest image, rendering the rarity system useless.

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