Unbound Flourishing [The List] Rivals of Ixalan Promos Sacrifice a creature: You gain

Sacrifice a creature: You gain life equal to the sacrificed creature's toughness

put a charge counter on Black Market

Set: Amonkhet Invocations Type: Instant Mythic Cost: {1}{B} Target player sacrifices a creature

{T}: Put a matrix counter on target creature and that creature gains "Remove a matrix counter from this creature: Regenerate this creature

Unbound Flourishing [The List] Rivals of Ixalan Promos Sacrifice a creature: You gainSet: The List 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.