Wargate | Magic: The Gathering
Formats Wargate is Legal in
Official Oracle Text for Wargate
Official Rulings for Wargate
5/1/2009 : You may always find a permanent card with converted mana cost 0. (If X is 0, that's all you can find.) Cards with no mana cost (such as land cards), cards with mana cost , and cards with mana cost all have converted mana cost 0.