Top Performing Decklists
| Deck | Creator | Record | Best Finish |
|---|---|---|---|
| Dimir Midrange | o_danielakos | 9-0 | 1st in MTGO Standard Challenge 32 #12763156 |
| Esper Pixie | mortadela | 5-0 | 1st in MTGO Standard League #8949 |
| Dimir Bounce | __bmj__ | 5-0 | 1st in MTGO Standard League #8949 |
| Dimir Midrange | beno04 | 5-0 | 1st in MTGO Standard League #8949 |
| Esper Pixie | pepeteam | 5-0 | 1st in MTGO Standard League #8949 |
Performance Stats (Last 14 Days)
Win Rate Impact
Top Table Win Rate
Meta Trend
Sample Size
Tournament Results
Average Copies
Archetypes Using This Card:
4 Color Repurposing , 5 Color Legends , Azorius Synthesizer , Azorius Tempo , Dimir Bounce , Dimir Cauldron , Dimir Control , Dimir Demons , Dimir Descend
Meta Performance Analysis
Underground River ranks #340 out of approximately 339 cards in raw efficiency (top 100%).
Game Impact Factor
Color Differential
Colorless average: 54.3%
Performance compared to other Colorless cardsBased on our comprehensive multi-metric analysis, Underground River 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: 28.81 (Win rate × Top 8 rate ÷ Mana value)
At 0 mana, the average win rate in the format is 69.0%. Underground River has a win rate of 68.2%, making it 1.1% worse than other 0-mana cards.
Top Performing Partners
| Card Name | Type | Deck Count | Win Rate | 1st Places |
|---|---|---|---|---|
| Thought-Stalker Warlock | Creature — Lizard Warlock | 37 | 78.3% | 15 |
| Soul Partition | Instant | 5 | 76.7% | 2 |
| Knight of Grace | Creature — Human Knight | 51 | 72.1% | 27 |
| Recommission | Sorcery | 7 | 66.4% | 2 |
| Sorcerous Spyglass | Artifact | 8 | 65.0% | 3 |
| Wilt-Leaf Liege | Creature — Elf Knight | 72 | 64.9% | 16 |
| Bloodletter of Aclazotz | Creature — Vampire Demon | 8 | 64.6% | 3 |
| The Mightstone and Weakstone | Legendary Artifact — Powerstone | 10 | 64.1% | 6 |
| Sunpearl Kirin | Creature — Kirin | 51 | 64.1% | 17 |
| Arcane Proxy | Artifact Creature — Wizard | 5 | 62.5% | 2 |
Card Synergy Analysis
Cards that perform better with Underground River 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 |
|---|---|---|---|---|---|---|
| Mazemind Tome | Artifact | 2 | 5 | 73.9% | 68.5% | +5.4% |
| Saiba Cryptomancer | Creature — Moonfolk Ninja | 2 | 18 | 76.7% | 72.5% | +4.2% |
| Doomsday Excruciator | Creature — Demon | 6 | 5 | 75.0% | 71.6% | +3.4% |
| Thought-Stalker Warlock | Creature — Lizard Warlock | 3 | 6 | 69.2% | 66.3% | +2.9% |
| Blot Out | Instant | 3 | 13 | 72.6% | 69.9% | +2.7% |
| Scavenger Regent | Creature — Dragon | 4 | 5 | 68.6% | 66.0% | +2.6% |
| Get Out | Instant | 2 | 42 | 73.3% | 70.8% | +2.5% |
| Dreams of Steel and Oil | Sorcery | 1 | 86 | 70.3% | 68.6% | +1.6% |
| Entity Tracker | Creature — Human Scout | 3 | 29 | 70.6% | 69.0% | +1.6% |
| Sunpearl Kirin | Creature — Kirin | 2 | 51 | 70.1% | 68.7% | +1.4% |
Top Archetypes
| Archetype | Deck Count | % of Archetype | Win Rate |
|---|---|---|---|
| Dimir Midrange | 2056 | 99.7% | 50.3% |
| Esper Pixie | 1501 | 97.0% | 54.1% |
| Dimir Bounce | 490 | 99.8% | 49.4% |
| Dimir Demons | 95 | 93.1% | 52.3% |
| Dimir Control | 62 | 84.9% | 49.6% |
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.