How to beat Mono-Blue Stiflenought in Premodern
Over the last 90 days of recorded Premodern matches, the decks with the best results against Mono-Blue Stiflenought are Selesnya Enchantress (65% over 26 matches). Selesnya Enchantress's 65% sits in a 95% range of 46%–81%, which is the range a 26-match sample actually supports. The decks with the best records against it most often carry Xantid Swarm, Tormod's Crypt and Sacred Ground in the sideboard — those are their sideboards in general, not cards chosen for this matchup.
Best records against Mono-Blue Stiflenought
Matches played in the last 90 days, from events that publish round-by-round pairings. Ranked by the bottom of each 95% range, not by the headline percentage, so a small sample cannot outrank a large one.
| Deck | Win rate vs Mono-Blue Stiflenought | Record | Matches | Sample | 95% range |
|---|---|---|---|---|---|
| Selesnya Enchantress | 65.4% | 17-9 | 26 | High sample | 46%–81% |
- High sample · 20+ matches
- Medium sample · 8–19 matches
- Low sample · 5–7 matches
35 further pairings (67 matches) fall below the 5-match floor and are not given a percentage. 2 pairings against archetypes that have left the Premodern metagame are excluded. Full history, retired archetypes included, is on Mono-Blue Stiflenought's archetype page and in the Premodern matchup matrix.
What the decks that beat Mono-Blue Stiflenought bring
Sideboard cards run by Selesnya Enchantress. This is not a sideboard guide for this matchup. We record who beat whom, not what either player boarded, so these are whole-sideboard frequencies across every matchup those decks play — a hint about the kind of card that punishes Mono-Blue Stiflenought, not a list to bring in.
| Card | Decks running it | Average copies | Which decks |
|---|---|---|---|
| Xantid Swarm | 1 of 1 | 2.6 | Selesnya Enchantress |
| Tormod's Crypt | 1 of 1 | 2.2 | Selesnya Enchantress |
| Sacred Ground | 1 of 1 | 1.3 | Selesnya Enchantress |
| Aura of Silence | 1 of 1 | 1.3 | Selesnya Enchantress |
| Tsabo's Web | 1 of 1 | 0.9 | Selesnya Enchantress |
| Warmth | 1 of 1 | 0.8 | Selesnya Enchantress |
| Sphere of Law | 1 of 1 | 0.8 | Selesnya Enchantress |
| Karmic Justice | 1 of 1 | 0.8 | Selesnya Enchantress |
| Ray of Revelation | 1 of 1 | 0.6 | Selesnya Enchantress |
| Gaea's Blessing | 1 of 1 | 0.6 | Selesnya Enchantress |
| Abeyance | 1 of 1 | 0.5 | Selesnya Enchantress |
| Replenish | 1 of 1 | 0.5 | Selesnya Enchantress |
Average copies is expected copies per deck — average copies played multiplied by the share of that archetype's lists running the card — so a 4-of in half the lists reads as 2.0.
Decks Mono-Blue Stiflenought beats
The other end of the same table. If you are choosing a deck to attack Mono-Blue Stiflenought with, the record argues against these.
| Deck | Win rate vs Mono-Blue Stiflenought | Record | Matches | Sample | 95% range |
|---|---|---|---|---|---|
| Elves | 16.7% | 1-5 | 6 | Low sample | 3%–56% |
| Simic Madness | 16.7% | 1-5 | 6 | Low sample | 3%–56% |
| Mono-Red Sligh | 25.0% | 2-6 | 8 | Medium sample | 7%–59% |
| Azorius Replenish | 20.0% | 1-4 | 5 | Low sample | 4%–62% |
| Selesnya Land Destruction | 41.7% | 5-7 | 12 | Medium sample | 19%–68% |
| Naya Terragedon | 46.2% | 6-7 | 13 | Medium sample | 23%–71% |
- High sample · 20+ matches
- Medium sample · 8–19 matches
- Low sample · 5–7 matches
Questions
What beats Mono-Blue Stiflenought in Premodern?
Across the last 90 days, Selesnya Enchantress (65% over 26 matches) hold the best recorded results against Mono-Blue Stiflenought. Records come from events that publish round-by-round pairings, and both decks in a match have to be identified for it to count, so these are the pairings we can see rather than every match played.
What should I bring in against Mono-Blue Stiflenought?
We do not have sideboard choices tied to individual matches, so this is not a sideboard guide. What the data supports is narrower: the 1 deck with the best records against Mono-Blue Stiflenought — Selesnya Enchantress — most commonly run Xantid Swarm, Tormod's Crypt, Sacred Ground, Aura of Silence and Tsabo's Web in their sideboards. Those are whole-sideboard frequencies across every matchup those decks play.
What does Mono-Blue Stiflenought beat?
Mono-Blue Stiflenought's best recorded matchups over the same window are Elves (83% across 6 matches), Simic Madness (83% across 6 matches) and Mono-Red Sligh (75% across 8 matches). If you are picking a deck to attack Mono-Blue Stiflenought with, these are the ones the record argues against.
How reliable are these Premodern matchup numbers?
Not very, and the page says so per row rather than in aggregate. Every pairing shows its match count, its sample band and a 95% range; the strongest band we award is 20+ matches, which is still roughly a ±20-point range around the figure shown. Pairings under 5 matches are counted but never given a percentage — there are 35 of those for Mono-Blue Stiflenought right now. Rankings use the bottom of each range rather than the headline percentage, so a small sample cannot outrank a large one it has not earned.
What period does this cover?
Matches played in the last 90 days, filtered on when each match was actually played. Archetypes that have dropped out of the Premodern metagame are excluded from the ranking, which removes 2 pairings here — their historical records are still on Mono-Blue Stiflenought's own archetype page and in the format matchup matrix.
What each number on this site measures, and where it is least reliable, is set out on the methodology page.