Spreading Seas
Zendikar — common
Enchantment — Aura
Spreading Seas rulings:
2009-10-01: The enchanted land loses its existing land types and any abilities printed on it. It now has the land type Island and has the ability to tap to add to its controller’s mana pool. Spreading Seas doesn’t change the enchanted land’s name or whether it’s legendary, basic, or snow.