VLT + X-shooter for SN 2021adxl taken at four different epochs. Each spectrum has been normalized with respect to Hα and offset for clarity. Emission lines expected from the transient (black) are denoted by the vertical lines. Telluric absorption bands arising from atmospheric O₂ and H₂O are denoted by the ⊕ symbol. We shade in regions of high noise levels from our first two spectra for visual clarity.