Advocates are the most powerful type of Magi in the original Diablo.
They are found on Level 16 of Hell, where the Lord of Terror awaits. A Super Unique Advocate, the Archbishop Lazarus, can be found in the Unholy Altar. They shoot Fireballs, cast Flash, and can be found in Lazarus' Lair in Single Player and in Lazarus' room in Battle.net. They are Black.
Stats
Variants — Counselor • Magistrate • Cabalist • Advocate