Live Play Data

Vow of Duty

· Enchantment — Aura · Murders at Karlov Manor Commander (MKC)

Live Inclusion

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Times Brought

288

Decks Running

155

Median Cast Turn

Drawn → Played

67%

Format

Multiplayer 1v1

First-cast turn

n=45

11%

51%

T6-9

22%

T10+

Median 7 P25 5 · P75 9 · max 16

On curve 7% (3 / 45 cast on T3) Cast same turn as drawn 33%

The "good card" funnel

288 brought · 154 players

Brought to game

288

Ever drawn

Reached battlefield

Still on board at game end

Once cast, 60% 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.

≥ +2.8pp

Players who cast this card win 35% of the time (n=42) , vs 17% when it never left the library (n=182).

When players drew this card but left it in hand, they won 7% (n=15).

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 +17.4pp; 95% confidence interval +2.8pp to +32.0pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

70 instances

38.6%

Battlefield

31.4%

Graveyard

2.9%

Exile

27.1%

Hand

Commanders that played this card

in tracked games

1 Isperia, Supreme Judge 25 decks
2 Kaalia of the Vast 22 decks
3 Nelly Borca, Impulsive Accuser 22 decks
4 Breena, the Demagogue 13 decks
5 Eriette of the Charmed Apple 9 decks
6 Killian, Decisive Mentor 8 decks
7 Ghave, Guru of Spores 7 decks
8 Kangee, Sky Warden 6 decks
9 Karona, False God 3 decks
10 Light-Paws, Emperor's Voice 3 decks

Card text

Vow of Duty

Enchantment — Aura

Enchant creature Enchanted creature gets +2/+2, has vigilance, and can't attack you or planeswalkers you control.

Murders at Karlov Manor Commander (MKC) · Uncommon · Illustrated by Wayne Reynolds

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 740,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.