Avarus, Archmage of Greed

When Avarus, Archmage of Greed becomes under your control, you lose life equal to the number of cards in your hand.
At the beginning of your upkeep, you may have target opponent gain control of Avarus. If you do, discard your hand, then draw seven cards.
During your draw step, discard a card. If you do, draw an additional 3 cards and lose 3 life.