Mill Doubler

Cards that increase the number of cards milled, multiplying every mill effect instead of providing a fixed amount. Bruvac the Grandiloquent applies a replacement effect that doubles the cards an opponent would mill, while Fraying Sanity scales the enchanted player's mill to match everything put into their graveyard each turn. These are force multipliers that turn a small mill into a game-ending one. Distinct from Opponent Mill, which provides the base mill amount these effects multiply, and from Mill Payoff, which rewards a full graveyard rather than enlarging the mill itself.