Spark of Death

Begin the game with this out of deck in play.
Spark of Death enters play with shroud.
-When you cast a sorcery put X counters on Spark
X = CMC. If it has more then 14 counters it loses
this ability & shroud.
-It gains the ability: {t} remove X counters from
Spark to cast a sorcery from your graveyard X =
CMC and cast it without paying its mana cost.
Then remove that spell from the game. If Spark
has no counters on it remove it from the game.