Contagion Clasp

Public decks that run Contagion Clasp

• Blight Curse - Lorwyn Eclipsed Commander Deck, led by Auntie Ool, Cursewretch
• Corrupting Influence - Phyrexia: All Will Be One Commander, led by Ixhel, Scion of Atraxa
• Mutant Menace - Fallout, led by The Wise Mothman

Commanders that run Contagion Clasp most

Deck counts from EDHREC.

• Auntie Ool, Cursewretch: 15,616 decks
• Atraxa, Praetors' Voice: 7,521 decks
• The Wise Mothman: 7,263 decks
• Fynn, the Fangbearer: 6,996 decks
• Hapatra, Vizier of Poisons: 4,218 decks
• Toxrill, the Corrosive: 3,230 decks
• Ixhel, Scion of Atraxa: 3,058 decks
• Massacre Girl, Known Killer: 2,922 decks

Often played with Contagion Clasp

Cards that show up in the same decks on EDHREC.

• Puncture Blast
• Retribution
• Puncture Bolt
• Grim Poppet
• Wickersmith's Tools
• Gnarled Effigy
• Serrated Arrows
• Blur of Blades
• Serrated Biskelion
• Scar

Rulings

• 2011-01-01: Contagion Clasp's first ability is mandatory. If you're the only player who controls a creature, you must target one of them.
• 2023-02-04: An ability that triggers "Whenever you proliferate" triggers even if you chose no permanents or players while doing so.
• 2023-02-04: To proliferate, you can choose any permanent that has a counter, including ones controlled by opponents. You can choose any player who has a counter, including opponents. You can't choose cards in any zone other than the battlefield, even if they have counters on them.
• 2023-02-04: You don't have to choose every permanent or player that has a counter, only the ones you want to add another counter to. Since "any number" includes zero, you don't have to choose any permanents at all, and you don't have to choose any players at all.
• 2023-02-04: If a player or permanent has more than one kind of counter on it, and you choose for it to get additional counters, it must get one of each kind of counter it already has. You can't have it get just one kind of counter it already has and not the others.
• 2023-02-04: Players can respond to a spell or ability whose effect includes proliferating. Once that spell or ability starts to resolve, however, and its controller chooses which permanents and players will get new counters, it's too late for anyone to respond.
• 2023-02-04: If a permanent ever has both +1/+1 counters and -1/-1 counters on it at the same time, they're removed in pairs as a state-based action so that the permanent has only one of those kinds of counters on it.