He once threw the Isle of Man at a rival and also legendarily built the Giant's Causeway.
This son of Muireann (mih-ran) Muncheam (mun-kham) once beheaded the demon Aillen mac Midna, who had previously raided Tara every Samhain (suh-vehn). For that act, Cormac mac Airt rewarded this man with a position previously held the man who killed this man's father had Cumhaill (cuh-vell), Goll mac Morna. He once threw the Isle of Man at a rival and also legendarily built the Giant's Causeway. He encountered a doe while hunting; that doe transformed into his wife Sadb (Sad-dub), who eventually gave birth to his son Oisin. While apprenticed to Finnegas, this character burned his thumb on a creature who'd previously lived in the Boyne. For 10 points, identify this mythical Irish hunter-warrior who led the Fianna and caught the Salmon of Knowledge.
This son of Muireann (mih-ran) Muncheam (mun-kham) once beheaded the demon Aillen mac Midna, who had previously raided Tara every Samhain (suh-vehn).
{Finn MacCool} or {Fionn mac Cumhaill}