Lúin of Celtchar

Detailed descriptions of the spear's special use and terrible effect are to be found in the Middle Irish texts Togail Bruidne Dá Derga ("The Destruction of the Hostel of Da Derga") (Recension II) and Mesca Ulad ("The Intoxication of the Ulstermen"), both of which employ the so-called "watchman device" to describe the fearful appearance of the warrior Dubthach Dóeltenga.

Dubthach had use of it (Togain Bruidne Da Derga and Mesca Ulad, see above quotes), and Dubhthach himself was slain by Fedlimid who wielded Lúin Celtchar according to a notice following the Togail Bruidne Dá Choca(e)[6] According to a poem by Cináed ua hArtacáin (d. 975), the Connacht champion Mac Cécht used it to slay Cúscraid Menn, son of Conchobor mac Nessa.

Moreover, it alleges this was the "Famous yew of the wood", the name by which the spear of Lug mac Eithliu of the Tuatha Dé Danann was called.

This tract occurs as a postscript to a later version (B group) of The Expulsion of the Déisi found in the same MS,[10] but is known only by the brief English recap provided by Hennessy.

Moreover, a tale of later date, the Early Modern Irish Oidheadh Chloinne Tuireann describes the spear of Lug in ways which are reminiscent of Celtchair's Lúin.