Oiran, The Secretkeeper

Whenever a creature you control deals combat
damage to a player or planeswalker, you may
look at and exile the top card of your library face
down with a Secret counter on it.
{p/b}{p/r}: You may play cards you own with Secret
counters on them from exile until end of turn.
Whenever you cast or play a card this way, you
lose 1 life.