Unbound Flourishing [Modern Horizons] Arena League 1999 or where prohibited by law

or where prohibited by law or the DCI

When it dies

The same is true for creature spells you control and creature cards you own that aren't on the battlefield

Set: Core Set 2019 Promos Type: Enchantment Mythic Cost: {7}{U}{U}{U} You may cast spells from your hand without paying their mana costs

Set: Judge Gift Cards 2005 Type: Land Rare Cost: Gemstone Mine enters the battlefield with three mining counters on it

Unbound Flourishing [Modern Horizons] Arena League 1999 or where prohibited by lawSet: 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.