This man found a chest full of treasure by telling
This man found a chest full of treasure by telling his master to dig at the spot where he dropped a hat. This man tricked Rhun into cutting off a maid's finger to try to prove he had slept with a noblewoman. While skating, he fell into a trance and saw the son of Gwyddno in a dungeon. This man inadvertently foiled a woman's attempt to bless her ugly son Morfran. He won a horse race against King Maelgwn with Dobbin, thus helping out his master Elphin, who caught this man while fishing for salmon in a weir. He gained his ability by swallowing three drops of a potion, after which Ceridwen ate this man when he turned into a grain. For 10 points, name this mythical bard named for the phrase meaning "shining brow" in Welsh.
This man found a chest full of treasure by telling his master to dig at the spot where he dropped a hat.
Taliesin [accept Gwion Bach]