Ghost of Atonement

Shroud, Indestructible, Haste
(X in Ghost of Atonement mana-cost is number of
cards in your opponent's hand)
When Ghost of Atonement enters the battlefield,
your opponent draws Y cards, where Y is
number of cards in your hand. Ghost of
Atonement deals damage to any target, equal to
the number of cards in your's opponent's hand.