Spectral sequence of SN 2018ivc, spanning two months of evolution after the discovery. The phases relative to the explosion are reported. The spectra have been corrected for redshift and Milky Way extinction only, as the host galaxy reddening is highly uncertain. The principal identified transitions are highlighted with vertical dashed lines. The possible high velocity feature discussed in Sect. 5.2 is also marked in gray. Each spectrum is shifted by a constant for graphical purposes. The regions most affected by the telluric absorption bands are marked in cyan.