Sorcery, 2GGG (5) Chroma - Reveal any number of cards in your hand. You gain 2 life for each green mana symbol in those cards' mana costs.1 The boggarts gorged themselves until their bellies glowed.
Illus. Ron Spencer
5/1/2007: A hybrid mana symbol that's both green and another color counts as a green mana symbol. Revealing Selesnya Guildmage, for example, would have you gain 4 life.
8/1/2008: Chroma abilities check only mana costs, which are found in a card's upper right corner. They don't count mana symbols that appear in a card's text box.
8/1/2008: Chroma abilities count hybrid mana symbols of the appropriate color. For example, a card with mana cost {3}{U/R}{U/R} has two red mana symbols in its mana cost.