Legal language is undergoing gradual change as legal institutions increasingly emphasize clarity, precision, and accessibility. However, guidance on legal drafting has often relied on inherited conventions and prescriptive traditions rather than systematic evidence of actual language use. This chapter argues that corpus linguistics offers a robust empirical foundation for understanding legal language change and for informing both drafting practice and legal language education. Drawing on corpus-based research on English legal texts, the chapter reviews diachronic developments in legal vocabulary, phraseology, and syntax. It shows how corpus findings can be used not only to support existing drafting recommendations but also to evaluate them critically. Moving from research to pedagogy, the chapter illustrates how relatively simple corpus methods can be integrated into the teaching of legal language, interpretation, and drafting, enabling learners to engage with authentic legal usage and to ground analytical and drafting decisions in observable linguistic patterns. In doing so, it demonstrates how corpus-based insights can be applied to enhance the teaching–learning process through empirically grounded engagement with legal language. While the discussion focuses primarily on English legal language, the methodological approach has broader relevance for legal communication and drafting education in other jurisdictions.