Harrowing Swarm is a uncommon Sorcery card from Magic: The Gathering (Alchemy: Duskmourn, YDSK).
Uncommon
Alchemy: Duskmourn (YDSK)
{1}{G}
Mana Value
2
Colors
G
Card Text
Manifest dread. Then each face-down creature you control gains "This permanent costs {2} less to turn face up" and "When this permanent is turned face up, if it's a creature, put a +1/+1 counter on it."
