First printed in Bloomburrow (2024)
Creature — Elemental Snake
As an additional cost to cast this spell, you may sacrifice any number of nonland permanents. This spell costs 
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
- Illustrated by
- Andrea Piparo
Legality
- Legal in
- Standard, Pioneer, Modern, Legacy, Vintage, Future Standard, Historic, Timeless, Alchemy, Gladiator, Commander, Duel Commander, Oathbreaker, Brawl, Standard Brawl, Competitive Brawl
- Not legal in
- Pauper, Penny Dreadful, Premodern, Old School 93/94, Pauper Commander, PreDH, Tiny Leaders
Rulings (4)
- 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.
- 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.
- 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.
- 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.
Prices
MTGO price: 0.57 TIX, the cheapest non-foil print (average sell price on GoatBots, 1 Nov 2026).
In Limited on MTG Arena
Win rates in Arena drafts and sealed, retrieved from 17Lands (CC BY 4.0).
| Set | GIH WR | vs set | IWD | Games |
|---|---|---|---|---|
| Bloomburrow (BLB), Premier Draft | 59.0% | +4.4 | +6.5 | 9957 |
| Bloomburrow (BLB), Sealed | 60.7% | +5.2 | +8.5 | 961 |
- GIH WR
- win rate of the games in which the card was in the opening hand or drawn
- vs set
- points above or below the average win rate of all decks in the set
- IWD
- improvement when drawn: GIH WR minus the win rate when the card stayed in the library
- Games
- games in which the card was seen
