This figure designed the (*) Round Table, and crowned the son of Uther Pendragon after that son pulled a sword from a stone.
As a boy, this figure prophecied that a fortress kept collapsing because it was built over a red dragon fighting a white dragon. This figure was imprisoned forever after falling in love with Nimue, and prophecized the Dolorous Stroke. This figure designed the (*) Round Table, and crowned the son of Uther Pendragon after that son pulled a sword from a stone. For 10 points, name this mythological wizard who advised King Arthur.
As a boy, this figure prophecied that a fortress kept collapsing because it was built over a red dragon fighting a white dragon.
{Merlin}