Unbound Flourishing [Modern Horizons] IDW Comics 2012 Players may spend mana as

Players may spend mana as though it were mana of any color

" —Sisay

At the beginning of that combat

Set: Starter 1999 Type: Sorcery Rarity: Rare Cost: {1}{G} You may play up to three additional lands this turn

Unbound Flourishing [Modern Horizons] IDW Comics 2012 Players may spend mana asSet: Modern Horizons Type: Enchantment Rarity: Mythic Cost: {2}{G} Whenever you cast a permanent spell with a mana cost that contains {X}, double the value of X. Whenever you cast an instant or sorcery spell or activate an ability, if that spell's mana cost or that ability's activation cost contains {X}, copy that spell or ability. You may choose new targets for the copy.