Top Performing Decklists
| Deck | Creator | Record | Best Finish |
|---|---|---|---|
| Sultai Dragons | platinum-mythic rank player | 6-0 | 1st in Traditional Standard Ranked Decklists: April 14, 2025 |
| Dimir Control | crystalpalacefc | 5-0 | 1st in MTGO Standard League #9097 |
| Sultai Beanstalk | __bmj__ | 5-0 | 1st in MTGO Standard League #9097 |
| sheffielddeckwins | 5-0 | 1st in MTGO Standard League #9097 | |
| Dimir Demons | trevor dalrymple | 4-1 | None |
Performance Stats (Last 14 Days)
Win Rate Impact
Top Table Win Rate
Meta Trend
Sample Size
Tournament Results
Average Copies
Archetypes Using This Card:
5 Color Legends , Azorius Tempo , Dimir Bounce , Dimir Cauldron , Dimir Control , Dimir Demons , Dimir Descend , Dimir Faeries , Dimir Flash
Meta Performance Analysis
Undercity Sewers ranks #410 out of approximately 409 cards in raw efficiency (top 100%).
Game Impact Factor
Color Differential
Colorless average: 65.1%
Performance compared to other Colorless cardsBased on our comprehensive multi-metric analysis, Undercity Sewers is an underperforming card in the current meta.
Recommended number of copies: 1
Win Rate Timeline
Card Efficiency Analysis
Raw Efficiency (Win Rate/Mana)
Relative Efficiency
Performance Efficiency: 66.80 (Win rate × Top 8 rate ÷ Mana value)
At 0 mana, the average win rate in the format is 73.9%. Undercity Sewers has a win rate of 86.8%, making it 17.5% better than other 0-mana cards.
Top Performing Partners
| Card Name | Type | Deck Count | Win Rate | 1st Places |
|---|---|---|---|---|
| Boon-Bringer Valkyrie | Creature — Angel Warrior | 8 | 100.0% | 8 |
| Glass Casket | Artifact | 8 | 100.0% | 8 |
| Lyra Dawnbringer | Legendary Creature — Angel | 7 | 100.0% | 7 |
| Herd Migration | Sorcery | 14 | 79.5% | 10 |
| Pawpatch Formation | Instant | 17 | 70.4% | 11 |
| Zur, Eternal Schemer | Legendary Creature — Human Wizard | 22 | 69.4% | 12 |
| Leyline Binding | Enchantment | 21 | 68.0% | 11 |
| Crystal Barricade | Artifact Creature — Wall | 6 | 66.7% | 4 |
| Quick Study | Instant | 27 | 60.9% | 8 |
| Up the Beanstalk | Enchantment | 33 | 60.7% | 13 |
Card Synergy Analysis
Cards that perform better with Undercity Sewers than they do on average. A positive synergy score indicates stronger performance together.
| Card Name | Type | Mana | Decks | Win Rate Together | Win Rate Apart | Synergy Score |
|---|---|---|---|---|---|---|
| Three Steps Ahead | Instant | 1 | 5 | 100.0% | 82.0% | +18.0% |
| Deadly Cover-Up | Sorcery | 5 | 5 | 100.0% | 82.9% | +17.1% |
| Obstinate Baloth | Creature — Beast | 4 | 6 | 90.5% | 80.8% | +9.7% |
| Jace, the Perfected Mind | Legendary Planeswalker — Jace | 4 | 8 | 88.5% | 81.1% | +7.4% |
| Negate | Instant | 2 | 8 | 88.4% | 81.2% | +7.2% |
| Ghost Vacuum | Artifact | 1 | 10 | 86.8% | 81.1% | +5.8% |
| Caustic Exhale | Instant | 1 | 5 | 81.8% | 76.2% | +5.6% |
| Scavenger Regent | Creature — Dragon | 4 | 7 | 81.8% | 76.9% | +4.9% |
| Duress | Sorcery | 1 | 9 | 83.8% | 79.8% | +4.0% |
| Cut Down | Instant | 1 | 7 | 82.4% | 79.6% | +2.8% |
Top Archetypes
| Archetype | Deck Count | % of Archetype | Win Rate |
|---|---|---|---|
| Dimir Midrange | 187 | 9.0% | 39.9% |
| Dimir Demons | 84 | 82.3% | 46.3% |
| Azorius Tempo | 81 | 20.4% | 55.4% |
| Dimir Control | 64 | 87.7% | 49.1% |
| Unknown Archetype | 49 | 15.6% | 24.1% |
Statistics Explanation
| Statistic | Description | Formula |
|---|---|---|
| Win Rate Impact | How much this card increases or decreases the win rate of decks that include it, compared to the average deck in the format. | (Win rate of decks with this card) - (Average win rate of all decks) |
| Top Table Win Rate | A weighted win rate that gives more significance to performance in higher tournament placements. First place finishes count for 2x, with diminishing weight down to 8th place. | ∑(wins × placement_weight) / ∑((wins + losses) × placement_weight) |
| Meta Trend | Shows if the card is performing better or worse in the most recent period compared to earlier periods. Positive values indicate improving performance. | (Win rate in recent half of time period) - (Win rate in earlier half of time period) |
| Confidence Factor | A measure of statistical reliability based on sample size. The progress bar indicates how confident we are in the statistics (with larger sample sizes providing higher confidence). | log10(Number of decks + 1) |
| Average Copies | The average number of copies of this card included in decks that use it. | ∑(Copies in each deck) / (Number of decks) |
| Card Synergy Score | Measures how well this card performs with other cards compared to their individual performance. | (Win rate together) - (Average of individual win rates) |
| Raw Efficiency | Win rate points per mana invested. Higher values indicate better returns on mana investment. | (Win rate) / (Mana value) |
| Relative Efficiency | How efficient this card is compared to the average card of the same mana value. | ((Win rate) / (Format average win rate for same mana)) / (Mana value) |
| Performance Efficiency | Combined metric that accounts for win rate, tournament success, and mana investment. | (Win rate × Top 8 placement rate) / (Mana value) |
| Game Impact Factor | A measure of how much this card affects game outcomes, based on win rate adjusted by its deviation from the format average. | Win rate × (1 + (Win rate - Format average) / 100) |
| Color Differential | How this card's win rate compares to the average win rate of other cards of the same color. | Win rate - Average win rate for same color |
All statistics are calculated using tournament data from the selected time period. Sample sizes below 10 decks may not provide statistically significant results.