This is the 64th episode of Mathcast, in which we discuss Kaonashi, Waternoose, Codex of the Gods, Deathtax, the Dead Hour Noise / Deeper Graves split, the 4 Ways to Die Split with Kurama, psyou'redead, Thotcrime, and The Queen Guillotined, and reveal the full lineup for Mathcore Index Fest 2021.