Live Play Data

Contagion Engine

· Artifact · Scars of Mirrodin (SOM)

Live Inclusion

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Times Brought

1023

Decks Running

446

Median Cast Turn

7.5

Drawn → Played

50%

Format

Multiplayer 1v1

First-cast turn

n=106

10%

61%

T6-9

25%

T10+

Median 7.5 P25 6 · P75 10 · max 19

On curve 33% (21 / 106 cast on T6) Cast same turn as drawn 27%

The "good card" funnel

1023 brought · 405 players

Brought to game

1023

Ever drawn

214

Reached battlefield

106

Still on board at game end

Once cast, 73% of this card is still on the battlefield at game end. This reflects how often it survives removal, not just whether it's a permanent.

≥ +5.0pp

Players who cast this card win 31% of the time (n=100) , vs 17% when it never left the library (n=704).

When players drew this card but left it in hand, they won 19% (n=103).

Read this as correlation, not as the card's contribution. Casting a card means you lived long enough to cast it, so this gap widens with mana value across every card we track.

Observed gap +13.6pp; 95% confidence interval +5.0pp to +22.2pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

240 instances

4.2%

Library

32.1%

Battlefield

20.4%

Graveyard

2.9%

Exile

Commanders that played this card

in tracked games

Card text

Contagion Engine

Artifact

When this artifact enters, put a -1/-1 counter on each creature target player controls. {4}

: Proliferate twice. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

Scars of Mirrodin (SOM) · Rare · Illustrated by Daarken

Frequently Asked

Why isn't there more data on this card?

Playgroup Live collects per-card gameplay data from real Commander games. Play counts appear once a card reaches 100 tracked games, and the full charts need a sample of at least 25 observed games that is not dominated by a single pilot. Until this card clears those bars you're seeing only the basic counts. Stats refresh nightly.

How is Playgroup Live card data collected?

Players using Playgroup Live import their decklists before a game and log card actions as they play. Each cast, zone change, and resolution is recorded as a real game event. Stats on this site are computed from those events, not from decklist scrapes or theorycrafting. Playgroup has recorded 760,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.