Spark Ignition

Indestructible, Hexproof
Imprint — {x}: You may exile an instant or sorcery card with mana value {x} from your hand. Activate this ability only once each turn.
Exile a card imprinted by Spark Ignition, {t}: Gain life equal to the mana value of the card exiled (That card is no longer imprinted on Spark Ignition)
Pay {x} life, {t}: You may copy an imprinted instant or sorcery card with mana value {x} and play the copy without paying its mana cost.
When Spark Ignition leaves the bat