Mindcrank

At the beginning of your upkeep, each player draws a card.

Whenever an opponent draws a card, that player loses 1 life.

Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce.

Whenever a permanent becomes untapped, that permanent's controller mills a card.

Whenever a player plays a land, that player draws a card.

Whenever another permanent you control enters, each opponent mills a card.

, Sacrifice an artifact: Target player mills three cards.

Whenever an artifact enters, you may untap this artifact.