Mistveil Key enters the battlefield tapped unless you pay 3 life.
: Add or to your mana pool.
Put Mistveil Key on top of your library: Add to your mana pool.
, , Sacrifice Mistveil Key: Target player draws two cards, then discards two cards.
: Add 
or 
to your mana pool.
to your mana pool. , , Sacrifice Mistveil Key: Target player draws two cards, then discards two cards.
