Stealer of Secrets

1G: This creature gets +2/+2 until end of turn. Activate only once each turn.

Destroy target creature. Its controller loses 2 life and you gain 2 life.

Enchant creature Enchanted creature gets +2/+0 and can't be blocked.

Flying (This creature can't be blocked except by creatures with flying or reach.) Nightmare's power and toughness are each equal to the number of Swamps you control.

Target player draws two cards.

Flying When this creature enters, target player loses 2 life and you gain 2 life.

Flying

Flying Vigilance (Attacking doesn't cause this creature to tap.)