A single individual card from the Magic: the Gathering (MTG) trading and collectible card game (TCG/CCG).
This is of Uncommon rarity.
From the Scars of Mirrodin set.
Magic: the Gathering is a collectible card game created by Richard Garfield. In Magic, you play the role of a planeswalker who fights other planeswalkers for glory, knowledge, and conquest. Your deck of cards represents all the weapons in your arsenal. It contains the spells you know and the creatures you can summon to fight for you.
Card Name: Contagion Clasp
Cost: 2
Color: Artifact
Card Type: Artifact Creature - Shapeshifter
Card Text: 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.)