The Winged Lion

Flying Vigilance Ward — {4}
The Winged Lions power and toughness are both
equal to twice the number of cards exiled
underneath it.
As The Winged Lion enters the battlefield exile
any number of cards from your hand face down
underneath The Winged Lion.
{4},Discard a Card or Sacrifice a nontoken
Permanent: you may play a card exiled with
The Winged Lion without paying its mana cost.