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Efficient Construction

· Enchantment · Commander Masters (CMM)

Decklist Inclusion

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Times Brought

172

Decks Running

In Decks

661

Decklist Inclusion

Format

Multiplayer 1v1

Card text

Efficient Construction

Enchantment

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.

Commander Masters (CMM) · Uncommon · Illustrated by Jonas De Ro

Final zone distribution

43 instances

44.2%

Battlefield

20.9%

Graveyard

7.0%

Exile

27.9%

Hand

Commanders that played this card

in tracked games

1 Mendicant Core, Guidelight 11 decks
2 Breya, Etherium Shaper 10 decks
3 Urza, Lord High Artificer 7 decks
4 Urza, Chief Artificer 6 decks
5 Mm'menon, the Right Hand 4 decks
6 Aloy, Savior of Meridian 2 decks
7 Brudiclad, Telchor Engineer 2 decks
8 Fblthp, Lost on the Range 2 decks
9 Golbez, Crystal Collector 2 decks
10 Lady Octopus, Inspired Inventor 2 decks

The "good card" funnel

172 brought · 77 players

Brought to game

172

Ever drawn

Reached battlefield

Still on board at game end

Once cast, 70% 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.

≥ -15.3pp

Players who cast this card win 29% of the time (n=25) , vs 26% when it never left the library (n=115).

Observed gap +3.2pp; 95% confidence interval -15.3pp to +21.8pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=27

15%

22%

41%

T6-9

11%

T10+

Median 6 P25 4 · P75 7 · max 15

On curve 26% (4 / 27 cast on T4) Cast same turn as drawn 41%

27 of 100 times cast 27%

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.