Zarael, the Scoutmaster

First strike
When Zarael, the Scoutmaster enters the battlefield, put a 1/1 blue Bird creature token named 'Ashen' with flying and has "As long as this creature stays on the battlefield, target player plays with his or her hand revealed."
Whenever Zarael, the Scoutmaster attacks a player, choose a card in his or her hand. That player discards that card.