The immortal snail is an old meme, The whole purpose of the snail is that anyone who touches it dies a horrible death, He is immortal and will continue to follow you until he reaches you, just remember, he usually chases immortals, But there are no immortals nearby so he decided to attack you, If you try to beat it with salt or something it will only take a few hours, maybe days... maybe even weeks or months to regenerate (okay, a lot more than a few months), But it will still really hurt him