Summon the ultimate creature with Finale of Devastation! This powerful spell allows you to search your library and/or graveyard for a creature card with a mana value of X or less, bringing it onto the battlefield. If you delve deep enough and X is 10 or more, watch as your creatures gain a massive boost in power and speed with +X/+X and haste until the end of turn. Unleash devastation and conquer the battlefield with this game-changing card.