Alley Assailant {2}{B}
Creature — Vampire Rogue
This creature enters tapped.
Disguise {4}{B}{B} (You may cast this card face down for {3} as a 2/2 creature with ward {2}. Turn it face up any time for its disguise cost.)
When this creature is turned face up, target opponent loses 3 life and you gain 3 life.
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Cards that do something similar expected a card that isn't here?
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Qarsi Sadist 83%
$0.09#23701
"When this creature exploits a creature, target opponent loses 2 life and you gain 2 life."