Helm of Obedience Combo

Some 90s cards you may see in this archetype: Helm of Obedience, Dark Ritual, Ancient Tomb, City of Traitors.

In combination with cards like Leyline of the Void and Dauthi Voidwalker, Helm of Obedience mills your opponent’s entire library. You’ll also often see prison cards like Chalice of the Void and Trinisphere in Helm decks.