Unbound Flourishing [Modern Horizons] Merfolk Mutant if any of those cards

if any of those cards remain exiled

"A massive new Izzet building project with an unstated purpose

When Necromancy enters the battlefield

Death comes in the blink of an eye

Set: Modern Masters Type: Instant Rarity: Rare Cost: {0} Search your library for a green creature card

Unbound Flourishing [Modern Horizons] Merfolk Mutant if any of those cardsSet: 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.