Drisker Arc is a character in The Black Elfstone. He is an exiled, former Ard Rhys who was living in quiet seclusion, far from the politics and power struggles of his time at Paranor, until two brutal attacks by would-be assassins forced him to seek out a notorious assassin's guild and find the hidden enemy who marked him for death. He instructs Tarsha Kaynin how to master using the wishsong.
At nearly seven feet tall, Drisker Arc is described as one of the most physically impressive Druids since the legendary Allanon. He has dark skin, hair that he keeps long and braided, and pale blue eyes. He is considered inscrutable, with changing moods that are hard to discern from his facial expression.