Zendikar Resurgent [Oath of the Gatewatch]

Set: Oath of the Gatewatch Type: Enchantment Rare Cost: {5}{G}{G} Whenever you tap a land for mana, add one mana of any type that land produced. (The types of mana are white, blue, black, red, green, and colorless.) Whenever you cast a creature spell, draw a card.