Cave of the Frost Dragon
Land
If you control two or more other lands, this land enters tapped.
{T}: Add {W}.
{4}{W}: This land becomes a 3/4 white Dragon creature with flying until end of turn. It's still a land.
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Cards that do something similar expected a card that isn't here?
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Den of the Bugbear 100%
$2.14#3064
"If you control two or more other lands, this land enters tapped."
Hive of the Eye Tyrant 100%
$0.50#7638
"If you control two or more other lands, this land enters tapped."
+1 more matching line
Lair of the Hydra 100%
$0.37#2423
"If you control two or more other lands, this land enters tapped."
Hall of Storm Giants 100%
$0.44#5431
"If you control two or more other lands, this land enters tapped."
Deserted Beach 93%
$5.38#274
"This land enters tapped unless you control two or more other lands."
+1 more matching line
Dreamroot Cascade 93%
$1.21#180
"This land enters tapped unless you control two or more other lands."
Shattered Sanctum 93%
$1.76#280
"This land enters tapped unless you control two or more other lands."
+1 more matching line
Overgrown Farmland 93%
$2.98#289
"This land enters tapped unless you control two or more other lands."
+1 more matching line
Stormcarved Coast 93%
$2.13#189
"This land enters tapped unless you control two or more other lands."
Scorched Geyser 91%
$0.39#4140
"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."