Raziel, Wielder of Secrets

Flying. Partner
Whenever an angel you control deals combat
damage to a player, look at the top card of each
player's library. Exile one of them face down
with a secret counter. You may look at it.
{t}: Remove a secret counter from a card. Reveal
the card. You may cast that spell by paying life
equal to its mana value rather than paying its
mana cost or create a X/X white angel token
with flying, where X is that card's converted
mana cost.