Contagion Clasp card art

Contagion Clasp

Artifact MV 2

Tracked across real Commander games played through TurnZero HQ.

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What it doesCombosRulingsIn the 99Every version

What it does

When this artifact enters, put a -1/-1 counter on target creature.

4, T: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Combos with Contagion Clasp

The lines this card is part of, what it needs alongside it, and what the cards do together. An infinite result is the one that moves a deck's bracket.

Combo data from Commander Spellbook, the community-maintained database of Magic combos. Mirrored nightly.

Rulings

7 official rulings, in the order Wizards published them.

  • 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.

Rulings are Wizards of the Coast's own, mirrored from Scryfall and refreshed nightly.

In the 99

Every deck whose current list includes Contagion Clasp, whatever its commander.

Decks running it 3
Games played 0
Win rate — Fewer than 5 completed games, which is not enough to publish a rate yet.
Confirmed on board 0 Games where a board photo caught it actually in play.

Most played under

Commander Decks Games Win rate
Auntie Ool, Cursewretch 3 0 —

Colors it shows up in

  • Jund 3 decks

Every version of Contagion Clasp

9 printings, newest first. Prices are the market figures Scryfall publishes, refreshed nightly. A printing with no figure shows a dash rather than a zero, because Scryfall publishes none for some of them.

Prices from Scryfall, which tracks the TCGplayer and Cardmarket markets. They move daily and are a guide rather than a quote. Search TCGplayer for Contagion Clasp. It runs a name search across every version, which covers the printings TCGplayer publishes no direct link to.

Aggregated from Commander games tracked in TurnZero HQ. Every figure counts decks and games only. No individual deck list, player or playgroup is identified. Win rates are withheld below 5 completed games, where the sample is too small to mean anything.