Oona, Sovereign of Twilight

Whenever you draw one or more cards, you may discard a card. If you do, create a 1/1 blue, black, and white Faerie creature token with deathtouch, flying, and lifelink.
At the beginning of each opponent's upkeep, if the number of cards in their hand is less than the number of Faeries you control, sacrifice a Faerie.
"And so the pact is sealed. Now leave, Goldmane. Or learn exactly how Curiosity killed the cat."