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You may exile two black cards from your hand rather than pay this spell's mana cost.
Soul Spike deals 4 damage to any target and you gain 4 life.
If you don’t have two cards of the right color in your hand, you can’t choose to cast the spell using the alternative cost.
You can’t exile a card from your hand to pay for itself. At the time you would pay costs, that card is on the stack, not in your hand.
You may pay the alternative cost rather than the card’s mana cost. Any additional costs are paid as normal.
