Roiling Dragonstorm [Tarkir: Dragonstorm]

Set: Tarkir: Dragonstorm Type: Enchantment Rarity: Uncommon Cost: {1}{U} When this enchantment enters, draw two cards, then discard a card.When a Dragon you control enters, return this enchantment to its owner's hand. "Beware dragonstorms that strike from the sea. Their size always disguises their force." —Narset