Dark Aura

Enchant Player
At the beginning of enchanted players
upkeep reveal the top card of their library.
If the card is an instant and sorcery, you
may exile it. As long as the card is in exile
you may play that card. If it is a land card,
Put it into their graveyard. If the card
revealed is a non-land permanent. That
player loses life equal to that permanents
mana cost.