First printed in Dominaria United (2022)
All 3 prints
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Final Fantasy Commander (FIC) #383, 2025
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Tarkir: Dragonstorm Commander (TDC) #353, 2025
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Dominaria United (DMU) #245, 2022
Contaminated Aquifer
Land — Island Swamp
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or 
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This land enters tapped.
In the last 30 days 13.8% of Pauper decks played it (264 of 1908). Most played in Dimir Control. In the last 30 days 0.0% of Commander decks played it (2 of 6150). Most played in Alela, Cunning Conqueror.
In Limited on MTG Arena
Win rates in Arena drafts and sealed, retrieved from 17Lands (CC BY 4.0).
| Set | GIH WR | vs set | IWD | Games |
|---|---|---|---|---|
| Dominaria United (DMU), Premier Draft | 56.8% | +0.3 | +1.5 | 136274 |
| Dominaria United (DMU), Sealed | 56.7% | +0.6 | +0.9 | 8939 |
- 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
-
Pauper staples:
main deck, 10% of decks (#37)
Lands
Last 120 days of MTGO results and paper tournaments.
Legality
Constructed
- Standard Not legal
- Pioneer Legal
- Modern Legal
- Legacy Legal
- Vintage Legal
- Pauper Legal
- Future Standard Not legal
- Historic Legal
- Timeless Legal
- Alchemy Not 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 Legal
- PreDH Not legal
- Tiny Leaders Legal
- Oathbreaker Legal
- Brawl Legal
- Standard Brawl Not legal
- Competitive Brawl Legal