His father was a professional polo player, and his family lived near Sarasota for nine years before moving to Hendersonville, North Carolina.

[7][8] His name is inspired by a weapon from the 2016 video game Dark Souls III, in which he uploaded his first song to SoundCloud in April 2020 using the alias.

[11][12] He quickly became popular on SoundCloud and Dan Awad, Glaive's current manager, discovered him through his song "Sick" in the summer of 2020.

[3] The music video for his song "Astrid", directed and shot by Hunter Ray Barker and Charlie Grant, was released in February.

[17] The lead single to his second EP, All Dogs Go to Heaven, "I Wanna Slam My Head Against the Wall" was released in March.

[18] In April, he collaborated with Aldn on "What Was the Last Thing U Said",[19] and in June, he was featured on Renforshort's single "Fall Apart" from her EP Off Saint Dominique.

[28] Across three weeks in February 2022, Glaive embarked on his first headlining tour in support of Old Dog, New Tricks, with Aldn and Midwxst as opening acts.

[30][31][32][33] That month, he released the single "Minnesota Is a Place That Exists" and announced a supporting autumn tour, his second of North America.

[47] On February 2, Glaive followed up with the release of "Even When the Sun Is Dead, Will You Tell Them How Hard I Tried" which he also recorded in Hope, Alaska alongside the rest of the coming EP.

[52][non-primary source needed] On May 10, he released the non-album single "Tijuana Freestyle", alongside a self-directed music video.

During this first concert of the tour in Phoenix, Arizona, he played an unreleased song titled "Modafinil" that he stated was "off an album that [he] made at the end of last year", which will "probably come out at some point".

[13] He has also been deemed a pioneer of the digicore genre, a more underground, largely teenage offshoot of hyperpop that uses elements of trap and emo rap with a DIY ethic.

[3][67] Billboard's Andrew Unterberger called Glaive a "cutting-edge pop artist"; Daisy Jones of Vice stated that his sound was "sugary, emotive and intuitive".