Rottenmouth Viper
Tracked across real Commander games played through TurnZero HQ.
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What it does
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.
Rulings
4 official rulings, in the order Wizards published them.
- 2024-07-26
While resolving Rottenmouth Viper’s triggered ability, your opponent chooses a card to be discarded without revealing it, chooses a nonland permanent to be sacrificed, or chooses to do neither. Cards or permanents they’ve chosen previously during this process can’t be chosen again. Then that player repeats that process if it hasn’t yet been done once for each blight counter on Rottenmouth Viper. Finally, that player discards the chosen cards, sacrifices the chosen permanents, and loses 4 life the appropriate number of times.
- 2024-07-26
In a multiplayer game, each opponent in turn order makes all of their choices, then all of the actions occur simultaneously. Opponents will know what choices opponents earlier in turn order made, although cards chosen to be discarded this way won’t be revealed until they’re discarded at the end of the process.
- 2024-07-26
If Rottenmouth Viper leaves the battlefield before its triggered ability resolves, use the number of blight counters that were on it as it last existed on the battlefield to determine how many times each opponent must make the listed choice.
- 2024-07-26
An opponent can always choose not to sacrifice a nonland permanent or discard a card (and therefore lose 4 life) even if they have cards in their hand or nonland permanents on the battlefield.
Rulings are Wizards of the Coast's own, mirrored from Scryfall and refreshed nightly.
In the 99
Every deck whose current list includes Rottenmouth Viper, whatever its commander.
Most played under
| Commander | Decks | Games | Win rate |
|---|---|---|---|
| Ashling, the Limitless | 1 | 10 | 20% |
| Mass of Mysteries | 1 | 0 | — |
| Olinda the Oblivious | 1 | 0 | — |
Colors it shows up in
- Five-Color 2 decks
- Mono-Black 1 deck
Every version of Rottenmouth Viper
4 printings, newest first. Prices are the market figures Scryfall publishes, refreshed nightly — a printing with no figure shows a dash rather than a zero, because Scryfall genuinely publishes none for some of them.
- Normal
- $7.40
- Foil
- $7.39
Promo
Bloomburrow Promos
- Normal
- $7.85
- Foil
- $9.23
Promo
Bloomburrow Promos
- Foil
- $9.76
Inverted
- Normal
- $11.79
- Foil
- $20.91
Prices from Scryfall, which tracks the TCGplayer and Cardmarket markets. They move daily and are a guide rather than a quote. Search TCGplayer for Rottenmouth Viper — a name search across every version, for the printings TCGplayer publishes no direct link to.
Aggregated from Commander games tracked in TurnZero HQ. Every figure counts decks and games only — no individual deck list, player or playgroup is identified. Win rates are withheld below 5 completed games, where the sample is too small to mean anything.
