Heed the Mists⁣ - Betrayers of Kamigawa⁣ (Uncommon)⁣ [36]

Heed the Mists allows you to mill a card and draw a number of cards equal to the mana value of the milled card. This can generate card advantage while also providing information about your opponent's deck. It's particularly effective in control or mill strategies, where knowing what your opponent has in their graveyard can inform your next moves. However, it requires a significant mana investment for its effect.