Unbound Flourishing [Modern Horizons]

Description

Set:	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.