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Contagion Engine

· Artifact · Scars of Mirrodin (SOM)

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Times Brought

191

Decks Running

103

In Decks

—

Decklist Inclusion

—

Format

Multiplayer 1v1

Showing 1v1 (duel) data only. 1v1 is a different format from multiplayer Commander, so these numbers are not comparable.

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

Final zone distribution

34 instances

50.0%

Battlefield

14.7%

Graveyard

2.9%

Exile

32.4%

Hand

Commanders that played this card

in tracked games

1 Atraxa, Praetors' Voice 23 decks
2 Auntie Ool, Cursewretch 8 decks
3 The Reaper, King No More 4 decks
4 Massacre Girl, Known Killer 3 decks
5 Toxrill, the Corrosive 3 decks
6 Ultron, Artificial Malevolence 3 decks
7 Agent Frank Horrigan 2 decks
8 High Perfect Morcant 2 decks
9 Ixhel, Scion of Atraxa 2 decks
10 Karumonix, the Rat King 2 decks

The "good card" funnel

191 brought · 96 players

Brought to game

191

Ever drawn

Reached battlefield

Still on board at game end

≥ -11.9pp

Players who cast this card win 27% of the time (n=16) , vs 26% when it never left the library (n=136).

Observed gap +1.0pp; 95% confidence interval -11.9pp to +13.9pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

19 of 100 times cast 19%

Full analysis unlocks as more games are tracked. Stats refresh nightly.

Frequently Asked

Why isn't there more data on this card?

Playgroup Live collects per-card gameplay data from real Commander games. Basic play counts appear once a card reaches 100 tracked games; the full deep-dive page needs a larger, more diverse sample (at least 300 tracked games played by 10 or more different pilots, with no single pilot over 40 percent of the copies). 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 660,000+ Commander games overall, and this card-level play data comes from the Playgroup Live subset of that corpus.