March of Wretched Sorrow 
Instant
$0.36 #9319 0.39 4.5 years
As an additional cost to cast this spell, you may exile any number of black cards from your hand. This spell costs 
less to cast for each card exiled this way.
less to cast for each card exiled this way.March of Wretched Sorrow deals X damage to target creature or planeswalker and you gain X life.
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