Commander

Koma, Cosmos Serpent

Global commander stats

All Simic commanders

603 Wins

1115 Losses

Overview

Summary

Koma, Cosmos Serpent is a Magic: The Gathering commander tracked across 1,746 recorded Playgroup games, winning 34% of them (603–1115) at an Elo of 1,571, ranking #838 globally.

Wins average 9 turns, with 17 damage dealt and 0.75 player kills per game on average.

Last full refresh 12 Oct 2026

Sources Scryfall · EDHREC · JSON API

Frequently Asked

What is Koma, Cosmos Serpent's win rate?

Koma, Cosmos Serpent has a 34% win rate across 1746 recorded Playgroup games (603 wins, 1115 losses).

How long do winning games with Koma, Cosmos Serpent take?

Wins with Koma, Cosmos Serpent take on average 9 turns. Total tracked play time: 7 months.

How many decks use Koma, Cosmos Serpent?

663 decks list Koma, Cosmos Serpent as their commander on Playgroup, of which 359 have played at least one recorded game.

Koma, Cosmos Serpent Magic: The Gathering commander card art

Buy on TCGplayer

Global rank

838

Wins by turn (avg.)

Elo rating

1571

Trend

Global Elo trend

Trend

Commander popularity trend

Averages

Misc. stats

Average damage per game 17

Average commander damage per game 8

Average poison counters given per game 9

Average kills per game 0.75

Average turn length 20 minutes

No. decks for this commander 663

No. decks with at least one game for this commander 359

No. games played with this commander 1746

Total hours played 7 months

Community

Top 5 public decks

Rank	Elo	User	Games	Wins	Winrate
1	1639	Aedricthebard	11	6	55 %
2	1588	Ivan Chavez	8	4	50 %
3	1580	Janjo	10	4	57 %
4	1555	Eddie Stardust	10	4	40 %
5	1552	FrostCzar	3	2	67 %

Outcomes

How does this commander win?

When Koma, Cosmos Serpent wins, 85.01% of wins come via combat across tracked games with a recorded win condition.

Combat

85.01%

Alternative

6.72%

Commander Damage

4.65%

Combo

1.55%

Non Combat Damage

1.29%

Poison

0.78%

Avg win turn 9.0 based on 620 wins with recorded turn counts

Measured

Staples that win games for Koma, Cosmos Serpent

Cards that raise this deck's measured win rate the most, compared with Koma, Cosmos Serpent decks that leave them out.

+1.8 pp

Top card: Talisman of Curiosity

#	Card	Lift Win-rate lift	Confidence	Games
1	Talisman of Curiosity 46 games	+1.8 pp		46
2	Oko, Thief of Crowns 45 games	+1.6 pp		45

Measured win-rate lift against decks on the same commander without the card, ranked by the 95% lower bound. How this is measured

Table position

Does seating order matter?

Koma, Cosmos Serpent wins 42.36% of games from position 1 and 0.0% from position 6 across tracked games.

Seat 1

42.36% n=517

Seat 2

35.16% n=492

Seat 3

28.7% n=439

Seat 4

29.07% n=246

Seat 5

35.48% n=31

Seat 6

0.0% n=1

Opening hands

Do mulligans hurt this commander?

Across tracked games, Koma, Cosmos Serpent wins 34.9% after 0 mulligans and 50.0% after 4 mulligans.

0 mulligans

34.9% n=765

1 mulligan

35.6% n=250

2 mulligans

29.79% n=94

3 mulligans

45.45% n=22

4 mulligans

50.0% n=4

Player reports

How do players rate games with this commander?

Pilot rating

Pilots rate their own games with Koma, Cosmos Serpent 3.59/5 on average, across 1157 self-reports.

3.59 / 5

🧂

Opponent salt

When Koma, Cosmos Serpent wins, opponents flag the game as salty 39.2% of the time across 623 tracked wins.

39.2 \%

Head to head

Best and worst matchups

Opposing commanders with at least ten tracked games against Koma, Cosmos Serpent. Pairs with fewer than 25 games are shown in italics; treat those as suggestive, not statistical.