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Rottenmouth Viper

· Creature — Elemental Snake · Bloomburrow (BLB)

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Times Brought

263

Decks Running

119

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

Rottenmouth Viper

Creature — Elemental Snake

As an additional cost to cast this spell, you may sacrifice any number of nonland permanents. This spell costs {1}

less to cast for each permanent sacrificed this way. Whenever this creature enters or attacks, put a blight counter on it. Then for each blight counter on it, each opponent loses 4 life unless that player sacrifices a nonland permanent of their choice or discards a card.

6 / 6

Bloomburrow (BLB) · Mythic · Illustrated by Andrea Piparo

Final zone distribution

53 instances

41.5%

Battlefield

22.6%

Graveyard

3.8%

Exile

32.1%

Hand

Commanders that played this card

in tracked games

1 Ashling, the Limitless 25 decks
2 Aphelia, Viper Whisperer 12 decks
3 Valgavoth, Terror Eater 7 decks
4 Isshin, Two Heavens as One 5 decks
5 Ygra, Eater of All 5 decks
6 Maha, Its Feathers Night 4 decks
7 Tergrid, God of Fright // Tergrid's Lantern 4 decks
8 Vren, the Relentless 4 decks
9 Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel 3 decks
10 Blech, Loafing Pest 2 decks

The "good card" funnel

263 brought · 115 players

Brought to game

263

Ever drawn

Reached battlefield

Still on board at game end

Once cast, 69% 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.

≥ -12.0pp

Players who cast this card win 23% of the time (n=30) , vs 25% when it never left the library (n=164).

When players drew this card but left it in hand, they won 28% (n=16).

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 -2.1pp; 95% confidence interval -12.0pp to +7.7pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=32

63%

T6-9

22%

T10+

Median 7.0 P25 6 · P75 9 · max 11

On curve 28% (4 / 32 cast on T6) Cast same turn as drawn 38%

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 750,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.