mtg serras sanctumurzas saga Oath of the Gatewatch Promos At the beginning of the

At the beginning of the upkeep of enchanted land's controller

Eventually

Set: The Dark Type: Creature — Goblin Wizard Rarity: Rare Cost: {2}{R}{R} {T}: You may put a Goblin permanent card from your hand onto the battlefield

sacrifice an artifact

Set: Vanguard Series Type: Vanguard Rarity: Rare Each noncreature artifact you control is an artifact creature with power and toughness each equal to its mana value

mtg serras sanctumurzas saga Oath of the Gatewatch Promos At the beginning of theSet: Urza's Saga Type: Legendary Land Rarity: Rare {T}: Add {W} for each enchantment you control. A fragile cocoon of dreaming will.