Underground River (Pioneer)
Underground River appears in 1.4% of Pioneer decks in the last 30 days (9 decks), averaging 2.4 copies in the main deck. It is played above all in UB (unclassified).
Share of decks
1.4%
▼ 1.5
vs previous 30 days
Weekly, last 90 days
Decks
9
9 main, 0 sideboard
Avg. copies
2.4
in the main deck
Win rate
60%
2 top 8 (challenges only)
Weekly data
| Week from | Share of decks |
|---|---|
| 2026-08-10 | 0.8% |
| 2026-08-17 | 3.5% |
| 2026-08-24 | 1.1% |
| 2026-08-31 | 1.2% |
| 2026-09-07 | 2.6% |
| 2026-09-14 | 4.1% |
| 2026-09-21 | 2.1% |
| 2026-09-28 | 3.6% |
| 2026-10-05 | 3.0% |
| 2026-10-12 | 1.9% |
| 2026-10-19 | 1.2% |
| 2026-10-26 | 0.0% |
Played together with
| Card | Together | Lift |
|---|---|---|
| Hopeless Nightmare | 100% | 72.1 |
| Momentum Breaker | 100% | 72.1 |
| Cryogen Relic | 100% | 59.0 |
| Shipwreck Marsh | 100% | 40.6 |
| Clearwater Pathway // Murkwater Pathway | 100% | 38.2 |
| Narset, Parter of Veils | 100% | 32.5 |
| Nowhere to Run | 100% | 27.0 |
| Petrified Hamlet | 100% | 21.6 |
| This Town Ain't Big Enough | 100% | 18.0 |
| Darkslick Shores | 100% | 16.2 |
| Gloomlake Verge | 100% | 15.8 |
| Watery Grave | 100% | 14.1 |
| Urborg, Tomb of Yawgmoth | 100% | 5.6 |
| Stormchaser's Talent | 100% | 5.5 |
| Boomerang Basics | 100% | 5.5 |
| Otawara, Soaring City | 100% | 4.8 |
| Takenuma, Abandoned Mire | 100% | 4.1 |
| Fatal Push | 100% | 4.0 |
| Thoughtseize | 100% | 3.8 |
| Stock Up | 78% | 29.7 |
- 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
Archetypes by metagame share
| Archetype | Meta | Play it |
|---|---|---|
| UB (unclassified) | 6.0% | 23% |