Den of the Bugbear
Land
If you control two or more other lands, this land enters tapped.
{T}: Add {R}.
{3}{R}: Until end of turn, this land becomes a 3/2 red Goblin creature with "Whenever this creature attacks, create a 1/1 red Goblin creature token that's tapped and attacking." It's still a land.
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Cards that do something similar expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
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"If you control two or more other lands, this land enters tapped."
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"If you control two or more other lands, this land enters tapped."
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"This land enters tapped unless you control two or more other lands."
+1 more matching line
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"This land enters tapped unless you control two or more other lands."
+1 more matching line
Dreamroot Cascade 93%
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"This land enters tapped unless you control two or more other lands."
Shattered Sanctum 93%
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"This land enters tapped unless you control two or more other lands."
Overgrown Farmland 93%
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"This land enters tapped unless you control two or more other lands."
Stormcarved Coast 93%
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"This land enters tapped unless you control two or more other lands."
Scorched Geyser 91%
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"This land enters tapped unless you control two or more basic lands."
Eclipsed Steppe 91%
$2.53#4967
"This land enters tapped unless you control two or more basic lands."