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.
1/22/2016 If the land’s mana ability produces more than one type of mana, choose one of those types to determine what mana Zendikar Resurgent produces.
1/22/2016 The last ability will resolve before the creature spell that caused it to trigger.