Blood Speaker

A tutor that costs a card and then refuses to stay dead. The first ability is a ritual sacrifice: trade the 3/2 body on your upkeep for any Demon in your library, which in an era when Demons routinely came with steep entry costs (Demon of Death's Gate and its kin demanded life, tribute, or sacrifices of their own) was a meaningful way to fetch a payoff you could not afford to draw into naturally. The second ability is the part that elevates it past a one-shot search creature. Resolving the Demon you just fetched returns the Speaker from your graveyard, so the engine reloads itself: tutor, cast, recur, tutor again. The card answers a structural problem specific to building around large, expensive Demons, namely that you need both the threats and a reliable way to find them without spending your hand on a fragile search creature each time. It built no archetype on its own, because the supporting Demon pool was thin for a long stretch and the upkeep timing is slow, but it remains the cleanest expression of a self-recurring tribal tutor: a piece that asks you to commit to one creature type and then stops being a single card, becoming a loop you feed Demons into. The 3/2 body is incidental, the cost you pay to start the engine.