Serra [Vanguard Series] 105 this unique mechanism extracts power

this unique mechanism extracts power from a carefully prepared gemstone

Forged out of flowstone for the queen of Vesuva

Nightmare's power and toughness are each equal to the number of Swamps you control

Set: Commander 2015 Type: Legendary Creature — Giant Soldier Rarity: Mythic Cost: {2}{R}{W} Double strike

Set: Sun & Moon: Black Star Promos Type: Lightning Rarity: Promo

Serra [Vanguard Series] 105 this unique mechanism extracts powerSet: Vanguard Series Type: Vanguard Rarity: Rare Creatures you control get +0 +2. Named for a benevolent goddess at birth, Serra fulfilled the prophecy of that goddess's coming. As a planeswalker, she embodies white mana and helps whole civilizations develop while both directly and indirectly inspiring countless individuals to be steadfast and strong in the service of light.