When Contagion Clasp enters the battlefield, put a -1/-1 counter on target creature. {4},{T}: Proliferate. (You choose any number of permanents and/or players with counters on them, then give each another counter of a kind already there.)

• Number: 144
• Rarity: U
• Type: Artifact
• Mana cost: 2
• Color: Artifact
• Artist: Anthony Palumbo