First printed in Bloomburrow (2024)

All 4 prints

Bloomburrow (BLB) #107, 2024
Bloomburrow (BLB) #290, 2024
Bloomburrow Promos (PBLB) #107p, 2024
Bloomburrow Promos (PBLB) #107s, 2024

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 generic 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.

In the last 30 days 4.4% of Standard decks played it (62 of 1416). Most played in BRG (unclassified). In the last 30 days 1.2% of Pioneer decks played it (5 of 408). Most played in BRG (unclassified).

In Limited on MTG Arena

Win rates in Arena drafts and sealed, retrieved from 17Lands (CC BY 4.0).

Win rates of Rottenmouth Viper in Limited
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

Staple

Standard staples: main deck, 5% of decks (#117)
Black, Creatures, Removal, Creature removal, Discard, Artifact removal, Enchantment removal

Last 120 days of MTGO results and paper tournaments.

Legality

Constructed

Standard Legal
Pioneer Legal
Modern Legal
Legacy Legal
Vintage Legal
Pauper Not legal
Future Standard Legal
Historic Legal
Timeless Legal
Alchemy Legal
Penny Dreadful Not legal
Premodern Not legal
Old School 93/94 Not legal

Singleton

Gladiator Legal

Commander formats

Commander Legal
Duel Commander Legal
Pauper Commander Not legal
PreDH Not legal
Tiny Leaders Not legal
Oathbreaker Legal
Brawl Legal
Standard Brawl Legal
Competitive Brawl Legal

In tournament decks of the last 30 days

Meta: share of the archetype in the format
Play it: decks of the archetype that play this card
Together: decks with this card that also play the other one (main deck)
Lift: how much more often than chance: 1 = unrelated, above 1 = played together on purpose

Standard Other periods →

In 62 of 1416 decks (4.4%).

Share of decks

4.4%

▼ 3.9 vs previous 30 days

Weekly, last 90 days

Decks

60 main, 13 sideboard

Avg. copies

2.6

in the main deck

Win rate

56%

12 top 8 (challenges only)

Archetypes by metagame share

Archetype	Meta	Play it
BRG (unclassified)	8.5%	50%
Mono-Black (unclassified)	0.8%	8%
UBG (unclassified)	0.8%	8%

Played together with

Card	Together	Lift
Obsessive Pursuit	98%	12.3
Overgrown Tomb	98%	8.2
Starting Town	98%	3.2
Gene Pollinator	97%	12.2
Biotech Specialist	97%	12.1
Greedy Freebooter	97%	12.0
The Sackville-Bagginses	97%	11.8
Blooming Marsh	97%	11.0
Stomping Ground	97%	9.8
Umbral Collar Zealot	95%	11.8

Best win rate

Deck	Record
BRG NukaCola in Standard Challenge 32 Special	8-1 89%
BRG pizzangry in Standard Challenge 16	8-1 89%
BRG duanceyao in Standard Challenge 32	7-2 78%
BRG Edel in Standard Championship Week Finals	7-2 78%
BRG J0hnWick in Standard Challenge 32 Special	6-2 75%
BRG _must_be_nice in Standard Challenge 32	6-2 75%
BRG duanceyao in Standard Challenge 32	5-2 71%
BRG Durotan97 in Standard Challenge 16	5-2 71%

Challenges only: MTGO publishes only the 5-0 league decks.

Latest decks

Deck	Copies	Finish
BRG komattaman, 28 Oct	2 main	#24 1-2
BRG StormQrow, 28 Oct	4 main	#26 0-3
BRG duanceyao, 27 Oct	2 main 1 side	#12 5-2
BRG duanceyao, 26 Oct	2 main 1 side	#16 4-2
BRG Arena ranked player, 26 Oct	2 main
BRG Vagabond87, 25 Oct	1 main	5-0
BRG Durotan97, 24 Oct	2 main	#5 5-2
BRG LordEgg, 24 Oct	2 main	#29 1-2

Pioneer Other periods →

In 5 of 408 decks (1.2%).

Share of decks

1.2%

▲ 1.1 vs previous 30 days

Weekly, last 90 days

Decks

5 main, 0 sideboard

Avg. copies

2.8

in the main deck

Win rate

58%

1 top 8 (challenges only)

Archetypes by metagame share

Archetype	Meta	Play it
BRG (unclassified)	7.1%	17%

Played together with

Card	Together	Lift
Oni-Cult Anvil	100%	31.4
Shrapnel Blast	100%	24.0
Springleaf Drum	100%	24.0
Experimental Synthesizer	100%	21.5
Copperline Gorge	100%	19.4
Voldaren Epicure	100%	18.5
Greedy Freebooter	100%	17.7
Biotech Specialist	100%	15.1
Stomping Ground	100%	13.2
Blood Crypt	100%	12.8

Best win rate

Deck	Record
BRG musasabi in Pioneer Challenge 32	4-2 67%
BRG Jacktastic_oo1 in Pioneer Challenge 16	3-2 60%
BRG HyPPeR in Pioneer Challenge 16	4-3 57%
BRG musasabi in Pioneer Challenge 32	3-3 50%

Challenges only: MTGO publishes only the 5-0 league decks.

Latest decks

Deck	Copies	Finish
BRG TheTokePope, 20 Oct	2 main	5-0
BRG musasabi, 13 Oct	3 main	#20 3-3
BRG HyPPeR, 11 Oct	3 main	#4 4-3
BRG Jacktastic_oo1, 11 Oct	3 main	#11 3-2
BRG musasabi, 9 Oct	3 main	#9 4-2

Modern Other periods →

In 1 of 2268 decks (0.0%).

Share of decks

0.0%

= vs previous 30 days

Weekly, last 90 days

Decks

1 main, 0 sideboard

Avg. copies

4.0

in the main deck

Win rate

–

0 top 8 (challenges only)

Archetypes by metagame share

Archetype	Meta	Play it
Affinity	5.7%	1%

Played together with

Not enough decks yet.

Best win rate

No challenge results yet.

Challenges only: MTGO publishes only the 5-0 league decks.

Latest decks

Deck	Copies	Finish
Affinity Stabilo, 17 Oct	4 main	5-0

Commander Other periods →

In 2 of 6150 decks (0.0%).

Share of decks

0.0%

▼ 0.1 vs previous 30 days

Weekly, last 90 days

Decks

2 main, 0 sideboard

Avg. copies

1.0

in the main deck

Win rate

0 top 8 (challenges only)

Archetypes by metagame share

Archetype	Meta	Play it
K'rrik, Son of Yawgmoth	0.8%	2%
Ashling, the Limitless	0.1%	14%

Played together with

Not enough decks yet.

Best win rate

Deck	Record
K'rrik, Son of Yawgmoth felipe zepeda in 2do Clasificatorio Nacional cEDH 2026 Sede La Serena	0-5 0%
Ashling, the Limitless Caleb Martinson in Mortal-Kraumbat	0-5 0%

Challenges only: MTGO publishes only the 5-0 league decks.

Latest decks

Deck	Copies	Finish
K'rrik, Son of Yawgmoth felipe zepeda, 10 Oct	1 main	#40 0-5
Ashling, the Limitless Caleb Martinson, 4 Oct	1 main	#52 0-5

No recent decks in: Legacy, Vintage, Duel Commander.