Prairie Stream is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.
Official card text
(: Add
or
.) This land enters tapped unless you control two or more basic lands.
Complete guide
Prairie Stream is a versatile dual land that rewards players for maintaining a foundation of basic lands in their deck. As both a Plains and an Island, it provides excellent color fixing while being searchable by various effects. Understanding its specific entry requirement is key to optimizing your mana base in the early game.
Dual Nature and Basic Types
Prairie Stream possesses the basic land types Plains and Island. This means it can be tapped for either white or blue mana. However, it is important to note that it is not a basic land itself because the word 'basic' is absent from its type line. Effects that target a 'Plains' or 'Island' can affect it, but effects looking specifically for a 'basic land' will ignore it.
The Untapped Condition
When Prairie Stream enters the battlefield, the game checks your current board state for basic lands. If you control two or more lands with the 'basic' supertype, it enters untapped and ready for use. If you control one or zero basic lands, it must enter the battlefield tapped. This check happens exactly as it enters; you cannot count other lands that are entering the battlefield at the same moment.
Common Misconceptions
A frequent mistake is assuming that controlling other copies of Prairie Stream helps satisfy the entry requirement. Because Prairie Stream is a nonbasic land, it does not count toward the 'two or more basic lands' threshold. Only lands literally named Plains, Island, Swamp, Mountain, Forest, or their snow-covered versions (and Wastes) typically provide the basic supertype needed.
Strategic Implementation
This land is most effective in decks that run a high density of basic lands, such as two-color builds or specific control archetypes. It is often played on turn three or later to ensure it provides immediate mana. If drawn in your opening hand without other basics, it is usually your first land drop to minimize the tempo loss of it entering tapped.
Interaction examples
Command TowerIf your only other land in play is Command Tower, Prairie Stream will enter the battlefield tapped. Command Tower is a nonbasic land, so it does not contribute to the requirement of controlling two basic lands. To have Prairie Stream enter untapped, you would need two basic lands, such as two basic Islands, in addition to or instead of the Command Tower.
Exotic OrchardIf an effect causes Prairie Stream and two basic Forests to enter the battlefield at the same time, Prairie Stream will enter tapped. This is because the game checks the condition immediately before the event happens. At that moment, you do not yet control the basic Forests, so the requirement for two basics is not met.
Guide written with AI from the official text and rulings. Official English text prevails.
How it works : Prairie Stream
Original English text — Wizards of the Coast / Scryfall
- #1· Wizards of the Coast
If one of these lands enters the battlefield at the same time as any number of basic lands, those other lands are not counted when determining if this land enters the battlefield tapped or untapped.
No other card is named in this ruling.
- #2· Wizards of the Coast
However, because these cards have basic land types, effects that specify a basic land type without also specifying that the land be basic can affect them. For example, a spell or ability that reads "Destroy target Forest" can target Canopy Vista, while one that reads "Destroy target basic Forest" cannot.
No other card is named in this ruling.
- #3· Wizards of the Coast
Even though these lands have basic land types, they are not basic lands because "basic" doesn't appear on their type line. Notably, controlling two or more of them won't allow others to enter the battlefield untapped.
No other card is named in this ruling.
Legal formats
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Meta decks with Prairie Stream
No archived Top 8 deck with this card yet.