Unbound Flourishing [SLD - 1331] Enchantment At the beginning of combat

At the beginning of combat on your turn

A thunderous explosion shattered the silver monolith and Avacyn emerged

exile all cards from all graveyards

Rules Text Contains: As Molten Echoes enters the battlefield

Unbound Flourishing [SLD - 1331] Enchantment At the beginning of combatRarity: M #: 1331 Creature Type or Sub Type: Enchantment Rules Text Contains: 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.