Gaea's Liege | Magic: The Gathering
Formats Gaea's Liege is Legal in
Official Oracle Text for Gaea's Liege
: Target land becomes a Forest until Gaea's Liege leaves the battlefield.
Official Rulings for Gaea's Liege
9/25/2006 : The activated ability doesn't affect whether the land is basic or not. It overwrites any other land types. Being a Forest gives the affected land the ability ": Add to your mana pool."
10/15/2006 : Will not add or remove Snow Supertype to or from a land.