Later in his life this figure's intended bride Grainne ran off with Diarmuid who would join him in a boar hunt and get badly gored. He would later fail to save Diarmuid's life by letting water intended for Diarmuid slip through his fingers for water drunk from his hands had healing powers. Among his other powers was that while sucking his thumb he could summon wisdom from a burn he received while cooking for Finnegas. For 10 points, name this hero of Irish myth who will 
Later in his life this figure's intended bride Grainne ran off with Diarmuid who would join him in a boar hunt and get badly gored. He would later fail to save Diarmuid's life by letting water intended for Diarmuid slip through his fingers for water drunk from his hands had healing powers. Among his other powers was that while sucking his thumb he could summon wisdom from a burn he received while cooking for Finnegas. For 10 points, name this hero of Irish myth who will wake from his cave below Dublin to save Ireland in her direst hour and tasted of the Salmon of Knowledge.
Later in his life this figure's intended bride Grainne ran off with Diarmuid who would join him in a boar hunt and get badly gored.
{Finn} McCool