Maralen, Oona's Twin

When Maralen, the Oona's Twin enters the battlefield you may search your library for a creature with power and toughness less than
Maralen, the Oona's Twin's power and toughness, and put it onto the battlefield.
At the beginning of your upkeep draw an additional card, then discard a card.
"I am sorry sister, I told them everything..." - Maralen to Oona